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CableTap/doc/advisories/bastille-29.password-of-the-day.txt
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| Bastille Tracking Number 29 | |
| CVE-2017-9486 | |
| Overview | |
| A vulnerability has been discovered that enables an attacker to generate the password-of-the-day needed login to a target gateway over SSH. | |
| Affected Platforms | |
| Cisco DPC3939, firmware version dpc3939-P20-18-v303r20421746-170221a-CMCST | |
| Proof-of-Concept | |
| Comcast gateways use a POTD (password-of-the-day) to authenticate SSH/CLI sessions. | |
| An attacker can generate a list of POTDs. | |
| Test Environment | |
| Cisco DPC3939, firmware version dpc3939-P20-18-v303r20421746-170221a-CMCST | |
| Mitigation | |
| There is no apparent mechanism to allow Comcast customers to control or change this behavior. | |
| Recommended Remediation | |
| Move to certificate-based authentication. | |
| Credits | |
| Marc Newlin and Logan Lamb, Bastille | |
| Chris Grayson, Web Sight.IO |