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Ruby/Python/JS/Swift: Add category of Private information to shared sensitive data heuristics #16446

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Original file line number Diff line number Diff line change
@@ -0,0 +1,4 @@
---
category: minorAnalysis
---
* Additional heuristics for a new sensitive data classification for private information (e.g. credit card numbers) have been added to the shared `SensitiveDataHeuristics.qll` library. This may result in additional results for queries that use sensitive data such as `js/clear-text-storage-sensitive-data` and `js/clear-text-logging`.
Original file line number Diff line number Diff line change
Expand Up @@ -14,13 +14,14 @@
* - id: a user name or other account information;
* - password: a password or authorization key;
* - certificate: a certificate.
* - private: private data such as credit card numbers
*
* While classifications are represented as strings, this should not be relied upon.
* Instead, use the predicates in `SensitiveDataClassification::` to work with
* classifications.
*/
class SensitiveDataClassification extends string {
SensitiveDataClassification() { this in ["secret", "id", "password", "certificate"] }
SensitiveDataClassification() { this in ["secret", "id", "password", "certificate", "private"] }
}

/**
Expand All @@ -38,6 +39,9 @@ module SensitiveDataClassification {

/** Gets the classification for certificates. */
SensitiveDataClassification certificate() { result = "certificate" }

/** Gets the classification for private data. */
SensitiveDataClassification private() { result = "private" }
}

/**
Expand Down Expand Up @@ -77,6 +81,40 @@ module HeuristicNames {
*/
string maybeCertificate() { result = "(?is).*(cert)(?!.*(format|name|ification)).*" }

/**
* Gets a regular expression that identifies strings that may indicate the presence of
* private data.
*/
string maybePrivate() {
result =
"(?is).*(" +
// Inspired by the list on https://cwe.mitre.org/data/definitions/359.html
// Government identifiers, such as Social Security Numbers
"social.?security|employer.?identification|national.?insurance|resident.?id|" +
"passport.?(num|no)|([_-]|\\b)ssn([_-]|\\b)|" +
// Contact information, such as home addresses
"post.?code|zip.?code|home.?addr|" +
// and telephone numbers
"(mob(ile)?|home).?(num|no|tel|phone)|(tel|fax|phone).?(num|no)|telephone|" +
"emergency.?contact|" +
// Geographic location - where the user is (or was)
"latitude|longitude|nationality|" +
// Financial data - such as credit card numbers, salary, bank accounts, and debts
"(credit|debit|bank|visa).?(card|num|no|acc(ou)?nt)|acc(ou)?nt.?(no|num|credit)|" +
"salary|billing|credit.?(rating|score)|([_-]|\\b)ccn([_-]|\\b)|" +
// Communications - e-mail addresses, private e-mail messages, SMS text messages, chat logs, etc.
// "e(mail|_mail)|" + // this seems too noisy
// Health - medical conditions, insurance status, prescription records
"birth.?da(te|y)|da(te|y).?(of.?)?birth|" +
"medical|(health|care).?plan|healthkit|appointment|prescription|" +
"blood.?(type|alcohol|glucose|pressure)|heart.?(rate|rhythm)|body.?(mass|fat)|" +
"menstrua|pregnan|insulin|inhaler|" +
// Relationships - work and family
"employ(er|ee)|spouse|maiden.?name" +
// ---
").*"
}

/**
* Gets a regular expression that identifies strings that may indicate the presence
* of sensitive data, with `classification` describing the kind of sensitive data involved.
Expand All @@ -90,6 +128,9 @@ module HeuristicNames {
or
result = maybeCertificate() and
classification = SensitiveDataClassification::certificate()
or
result = maybePrivate() and
classification = SensitiveDataClassification::private()
}

/**
Expand Down
Original file line number Diff line number Diff line change
@@ -0,0 +1,4 @@
---
category: minorAnalysis
---
* Additional heuristics for a new sensitive data classification for private information (e.g. credit card numbers) have been added to the shared `SensitiveDataHeuristics.qll` library. This may result in additional results for queries that use sensitive data such as `py/clear-text-storage-sensitive-data` and `py/clear-text-logging-sensitive-data`.
Original file line number Diff line number Diff line change
Expand Up @@ -14,13 +14,14 @@
* - id: a user name or other account information;
* - password: a password or authorization key;
* - certificate: a certificate.
* - private: private data such as credit card numbers
*
* While classifications are represented as strings, this should not be relied upon.
* Instead, use the predicates in `SensitiveDataClassification::` to work with
* classifications.
*/
class SensitiveDataClassification extends string {
SensitiveDataClassification() { this in ["secret", "id", "password", "certificate"] }
SensitiveDataClassification() { this in ["secret", "id", "password", "certificate", "private"] }
}

/**
Expand All @@ -38,6 +39,9 @@ module SensitiveDataClassification {

/** Gets the classification for certificates. */
SensitiveDataClassification certificate() { result = "certificate" }

/** Gets the classification for private data. */
SensitiveDataClassification private() { result = "private" }
}

/**
Expand Down Expand Up @@ -77,6 +81,40 @@ module HeuristicNames {
*/
string maybeCertificate() { result = "(?is).*(cert)(?!.*(format|name|ification)).*" }

/**
* Gets a regular expression that identifies strings that may indicate the presence of
* private data.
*/
string maybePrivate() {
result =
"(?is).*(" +
// Inspired by the list on https://cwe.mitre.org/data/definitions/359.html
// Government identifiers, such as Social Security Numbers
"social.?security|employer.?identification|national.?insurance|resident.?id|" +
"passport.?(num|no)|([_-]|\\b)ssn([_-]|\\b)|" +
// Contact information, such as home addresses
"post.?code|zip.?code|home.?addr|" +
// and telephone numbers
"(mob(ile)?|home).?(num|no|tel|phone)|(tel|fax|phone).?(num|no)|telephone|" +
"emergency.?contact|" +
// Geographic location - where the user is (or was)
"latitude|longitude|nationality|" +
// Financial data - such as credit card numbers, salary, bank accounts, and debts
"(credit|debit|bank|visa).?(card|num|no|acc(ou)?nt)|acc(ou)?nt.?(no|num|credit)|" +
"salary|billing|credit.?(rating|score)|([_-]|\\b)ccn([_-]|\\b)|" +
// Communications - e-mail addresses, private e-mail messages, SMS text messages, chat logs, etc.
// "e(mail|_mail)|" + // this seems too noisy
// Health - medical conditions, insurance status, prescription records
"birth.?da(te|y)|da(te|y).?(of.?)?birth|" +
"medical|(health|care).?plan|healthkit|appointment|prescription|" +
"blood.?(type|alcohol|glucose|pressure)|heart.?(rate|rhythm)|body.?(mass|fat)|" +
"menstrua|pregnan|insulin|inhaler|" +
// Relationships - work and family
"employ(er|ee)|spouse|maiden.?name" +
// ---
").*"
}

/**
* Gets a regular expression that identifies strings that may indicate the presence
* of sensitive data, with `classification` describing the kind of sensitive data involved.
Expand All @@ -90,6 +128,9 @@ module HeuristicNames {
or
result = maybeCertificate() and
classification = SensitiveDataClassification::certificate()
or
result = maybePrivate() and
classification = SensitiveDataClassification::private()
}

/**
Expand Down
Original file line number Diff line number Diff line change
Expand Up @@ -7,8 +7,21 @@ edges
| test.py:19:16:19:29 | ControlFlowNode for get_password() | test.py:19:5:19:12 | ControlFlowNode for password | provenance | |
| test.py:44:5:44:5 | ControlFlowNode for x | test.py:45:11:45:11 | ControlFlowNode for x | provenance | |
| test.py:44:9:44:25 | ControlFlowNode for Attribute() | test.py:44:5:44:5 | ControlFlowNode for x | provenance | |
| test.py:70:5:70:10 | ControlFlowNode for config | test.py:74:11:74:31 | ControlFlowNode for Subscript | provenance | |
| test.py:72:21:72:37 | ControlFlowNode for Attribute | test.py:70:5:70:10 | ControlFlowNode for config | provenance | |
| test.py:48:14:48:35 | ControlFlowNode for social_security_number | test.py:49:15:49:36 | ControlFlowNode for social_security_number | provenance | |
| test.py:48:38:48:40 | ControlFlowNode for ssn | test.py:50:15:50:17 | ControlFlowNode for ssn | provenance | |
| test.py:48:54:48:63 | ControlFlowNode for passportNo | test.py:52:15:52:24 | ControlFlowNode for passportNo | provenance | |
| test.py:54:34:54:45 | ControlFlowNode for home_address | test.py:57:15:57:26 | ControlFlowNode for home_address | provenance | |
| test.py:59:14:59:26 | ControlFlowNode for user_latitude | test.py:60:15:60:27 | ControlFlowNode for user_latitude | provenance | |
| test.py:59:29:59:42 | ControlFlowNode for user_longitude | test.py:61:15:61:28 | ControlFlowNode for user_longitude | provenance | |
| test.py:63:14:63:26 | ControlFlowNode for mobile_number | test.py:64:15:64:27 | ControlFlowNode for mobile_number | provenance | |
| test.py:63:29:63:35 | ControlFlowNode for phoneNo | test.py:65:15:65:21 | ControlFlowNode for phoneNo | provenance | |
| test.py:67:14:67:23 | ControlFlowNode for creditcard | test.py:68:15:68:24 | ControlFlowNode for creditcard | provenance | |
| test.py:67:26:67:35 | ControlFlowNode for debit_card | test.py:69:15:69:24 | ControlFlowNode for debit_card | provenance | |
| test.py:67:38:67:48 | ControlFlowNode for bank_number | test.py:70:15:70:25 | ControlFlowNode for bank_number | provenance | |
| test.py:67:76:67:78 | ControlFlowNode for ccn | test.py:73:15:73:17 | ControlFlowNode for ccn | provenance | |
| test.py:67:81:67:88 | ControlFlowNode for user_ccn | test.py:74:15:74:22 | ControlFlowNode for user_ccn | provenance | |
| test.py:101:5:101:10 | ControlFlowNode for config | test.py:105:11:105:31 | ControlFlowNode for Subscript | provenance | |
| test.py:103:21:103:37 | ControlFlowNode for Attribute | test.py:101:5:101:10 | ControlFlowNode for config | provenance | |
nodes
| test.py:19:5:19:12 | ControlFlowNode for password | semmle.label | ControlFlowNode for password |
| test.py:19:16:19:29 | ControlFlowNode for get_password() | semmle.label | ControlFlowNode for get_password() |
Expand All @@ -24,9 +37,35 @@ nodes
| test.py:44:5:44:5 | ControlFlowNode for x | semmle.label | ControlFlowNode for x |
| test.py:44:9:44:25 | ControlFlowNode for Attribute() | semmle.label | ControlFlowNode for Attribute() |
| test.py:45:11:45:11 | ControlFlowNode for x | semmle.label | ControlFlowNode for x |
| test.py:70:5:70:10 | ControlFlowNode for config | semmle.label | ControlFlowNode for config |
| test.py:72:21:72:37 | ControlFlowNode for Attribute | semmle.label | ControlFlowNode for Attribute |
| test.py:74:11:74:31 | ControlFlowNode for Subscript | semmle.label | ControlFlowNode for Subscript |
| test.py:48:14:48:35 | ControlFlowNode for social_security_number | semmle.label | ControlFlowNode for social_security_number |
| test.py:48:38:48:40 | ControlFlowNode for ssn | semmle.label | ControlFlowNode for ssn |
| test.py:48:54:48:63 | ControlFlowNode for passportNo | semmle.label | ControlFlowNode for passportNo |
| test.py:49:15:49:36 | ControlFlowNode for social_security_number | semmle.label | ControlFlowNode for social_security_number |
| test.py:50:15:50:17 | ControlFlowNode for ssn | semmle.label | ControlFlowNode for ssn |
| test.py:52:15:52:24 | ControlFlowNode for passportNo | semmle.label | ControlFlowNode for passportNo |
| test.py:54:34:54:45 | ControlFlowNode for home_address | semmle.label | ControlFlowNode for home_address |
| test.py:57:15:57:26 | ControlFlowNode for home_address | semmle.label | ControlFlowNode for home_address |
| test.py:59:14:59:26 | ControlFlowNode for user_latitude | semmle.label | ControlFlowNode for user_latitude |
| test.py:59:29:59:42 | ControlFlowNode for user_longitude | semmle.label | ControlFlowNode for user_longitude |
| test.py:60:15:60:27 | ControlFlowNode for user_latitude | semmle.label | ControlFlowNode for user_latitude |
| test.py:61:15:61:28 | ControlFlowNode for user_longitude | semmle.label | ControlFlowNode for user_longitude |
| test.py:63:14:63:26 | ControlFlowNode for mobile_number | semmle.label | ControlFlowNode for mobile_number |
| test.py:63:29:63:35 | ControlFlowNode for phoneNo | semmle.label | ControlFlowNode for phoneNo |
| test.py:64:15:64:27 | ControlFlowNode for mobile_number | semmle.label | ControlFlowNode for mobile_number |
| test.py:65:15:65:21 | ControlFlowNode for phoneNo | semmle.label | ControlFlowNode for phoneNo |
| test.py:67:14:67:23 | ControlFlowNode for creditcard | semmle.label | ControlFlowNode for creditcard |
| test.py:67:26:67:35 | ControlFlowNode for debit_card | semmle.label | ControlFlowNode for debit_card |
| test.py:67:38:67:48 | ControlFlowNode for bank_number | semmle.label | ControlFlowNode for bank_number |
| test.py:67:76:67:78 | ControlFlowNode for ccn | semmle.label | ControlFlowNode for ccn |
| test.py:67:81:67:88 | ControlFlowNode for user_ccn | semmle.label | ControlFlowNode for user_ccn |
| test.py:68:15:68:24 | ControlFlowNode for creditcard | semmle.label | ControlFlowNode for creditcard |
| test.py:69:15:69:24 | ControlFlowNode for debit_card | semmle.label | ControlFlowNode for debit_card |
| test.py:70:15:70:25 | ControlFlowNode for bank_number | semmle.label | ControlFlowNode for bank_number |
| test.py:73:15:73:17 | ControlFlowNode for ccn | semmle.label | ControlFlowNode for ccn |
| test.py:74:15:74:22 | ControlFlowNode for user_ccn | semmle.label | ControlFlowNode for user_ccn |
| test.py:101:5:101:10 | ControlFlowNode for config | semmle.label | ControlFlowNode for config |
| test.py:103:21:103:37 | ControlFlowNode for Attribute | semmle.label | ControlFlowNode for Attribute |
| test.py:105:11:105:31 | ControlFlowNode for Subscript | semmle.label | ControlFlowNode for Subscript |
subpaths
#select
| test.py:20:48:20:55 | ControlFlowNode for password | test.py:19:16:19:29 | ControlFlowNode for get_password() | test.py:20:48:20:55 | ControlFlowNode for password | This expression logs $@ as clear text. | test.py:19:16:19:29 | ControlFlowNode for get_password() | sensitive data (password) |
Expand All @@ -39,4 +78,17 @@ subpaths
| test.py:39:22:39:35 | ControlFlowNode for get_password() | test.py:39:22:39:35 | ControlFlowNode for get_password() | test.py:39:22:39:35 | ControlFlowNode for get_password() | This expression logs $@ as clear text. | test.py:39:22:39:35 | ControlFlowNode for get_password() | sensitive data (password) |
| test.py:40:22:40:35 | ControlFlowNode for get_password() | test.py:40:22:40:35 | ControlFlowNode for get_password() | test.py:40:22:40:35 | ControlFlowNode for get_password() | This expression logs $@ as clear text. | test.py:40:22:40:35 | ControlFlowNode for get_password() | sensitive data (password) |
| test.py:45:11:45:11 | ControlFlowNode for x | test.py:44:9:44:25 | ControlFlowNode for Attribute() | test.py:45:11:45:11 | ControlFlowNode for x | This expression logs $@ as clear text. | test.py:44:9:44:25 | ControlFlowNode for Attribute() | sensitive data (password) |
| test.py:74:11:74:31 | ControlFlowNode for Subscript | test.py:72:21:72:37 | ControlFlowNode for Attribute | test.py:74:11:74:31 | ControlFlowNode for Subscript | This expression logs $@ as clear text. | test.py:72:21:72:37 | ControlFlowNode for Attribute | sensitive data (password) |
| test.py:49:15:49:36 | ControlFlowNode for social_security_number | test.py:48:14:48:35 | ControlFlowNode for social_security_number | test.py:49:15:49:36 | ControlFlowNode for social_security_number | This expression logs $@ as clear text. | test.py:48:14:48:35 | ControlFlowNode for social_security_number | sensitive data (private) |
| test.py:50:15:50:17 | ControlFlowNode for ssn | test.py:48:38:48:40 | ControlFlowNode for ssn | test.py:50:15:50:17 | ControlFlowNode for ssn | This expression logs $@ as clear text. | test.py:48:38:48:40 | ControlFlowNode for ssn | sensitive data (private) |
| test.py:52:15:52:24 | ControlFlowNode for passportNo | test.py:48:54:48:63 | ControlFlowNode for passportNo | test.py:52:15:52:24 | ControlFlowNode for passportNo | This expression logs $@ as clear text. | test.py:48:54:48:63 | ControlFlowNode for passportNo | sensitive data (private) |
| test.py:57:15:57:26 | ControlFlowNode for home_address | test.py:54:34:54:45 | ControlFlowNode for home_address | test.py:57:15:57:26 | ControlFlowNode for home_address | This expression logs $@ as clear text. | test.py:54:34:54:45 | ControlFlowNode for home_address | sensitive data (private) |
| test.py:60:15:60:27 | ControlFlowNode for user_latitude | test.py:59:14:59:26 | ControlFlowNode for user_latitude | test.py:60:15:60:27 | ControlFlowNode for user_latitude | This expression logs $@ as clear text. | test.py:59:14:59:26 | ControlFlowNode for user_latitude | sensitive data (private) |
| test.py:61:15:61:28 | ControlFlowNode for user_longitude | test.py:59:29:59:42 | ControlFlowNode for user_longitude | test.py:61:15:61:28 | ControlFlowNode for user_longitude | This expression logs $@ as clear text. | test.py:59:29:59:42 | ControlFlowNode for user_longitude | sensitive data (private) |
| test.py:64:15:64:27 | ControlFlowNode for mobile_number | test.py:63:14:63:26 | ControlFlowNode for mobile_number | test.py:64:15:64:27 | ControlFlowNode for mobile_number | This expression logs $@ as clear text. | test.py:63:14:63:26 | ControlFlowNode for mobile_number | sensitive data (private) |
| test.py:65:15:65:21 | ControlFlowNode for phoneNo | test.py:63:29:63:35 | ControlFlowNode for phoneNo | test.py:65:15:65:21 | ControlFlowNode for phoneNo | This expression logs $@ as clear text. | test.py:63:29:63:35 | ControlFlowNode for phoneNo | sensitive data (private) |
| test.py:68:15:68:24 | ControlFlowNode for creditcard | test.py:67:14:67:23 | ControlFlowNode for creditcard | test.py:68:15:68:24 | ControlFlowNode for creditcard | This expression logs $@ as clear text. | test.py:67:14:67:23 | ControlFlowNode for creditcard | sensitive data (private) |
| test.py:69:15:69:24 | ControlFlowNode for debit_card | test.py:67:26:67:35 | ControlFlowNode for debit_card | test.py:69:15:69:24 | ControlFlowNode for debit_card | This expression logs $@ as clear text. | test.py:67:26:67:35 | ControlFlowNode for debit_card | sensitive data (private) |
| test.py:70:15:70:25 | ControlFlowNode for bank_number | test.py:67:38:67:48 | ControlFlowNode for bank_number | test.py:70:15:70:25 | ControlFlowNode for bank_number | This expression logs $@ as clear text. | test.py:67:38:67:48 | ControlFlowNode for bank_number | sensitive data (private) |
| test.py:73:15:73:17 | ControlFlowNode for ccn | test.py:67:76:67:78 | ControlFlowNode for ccn | test.py:73:15:73:17 | ControlFlowNode for ccn | This expression logs $@ as clear text. | test.py:67:76:67:78 | ControlFlowNode for ccn | sensitive data (private) |
| test.py:74:15:74:22 | ControlFlowNode for user_ccn | test.py:67:81:67:88 | ControlFlowNode for user_ccn | test.py:74:15:74:22 | ControlFlowNode for user_ccn | This expression logs $@ as clear text. | test.py:67:81:67:88 | ControlFlowNode for user_ccn | sensitive data (private) |
| test.py:105:11:105:31 | ControlFlowNode for Subscript | test.py:103:21:103:37 | ControlFlowNode for Attribute | test.py:105:11:105:31 | ControlFlowNode for Subscript | This expression logs $@ as clear text. | test.py:103:21:103:37 | ControlFlowNode for Attribute | sensitive data (password) |
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