What’s Vulnerable › Vulnerabilities

CVE-2017-9492

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2017-07-31 · updated 2026-06-17
• Weakness: CWE-200

Description

The Comcast firmware on Cisco DPC3939 (firmware version dpc3939-P20-18-v303r20421733-160420a-CMCST); Cisco DPC3939 (firmware version dpc3939-P20-18-v303r20421746-170221a-CMCST); Cisco DPC3939B (firmware version dpc3939b-v303r204217-150321a-CMCST); Cisco DPC3941T (firmware version DPC3941_2.5s3_PROD_sey); and Arris TG1682G (eMTA&DOCSIS version 10.0.132.SIP.PC20.CT, software version TG1682_2.2p7s2_PROD_sey) devices does not include the HTTPOnly flag in a Set-Cookie header for administration applications, which makes it easier for remote attackers to obtain potentially sensitive information via script access to cookies.

Affected products

• Cisco Dpc3939 Firmware: dpc3939-p20-18-v303r20421733-160420a-cmcst, dpc3939-p20-18-v303r20421746-170221a-cmcst
• Cisco Dpc3939B Firmware: dpc3939b-v303r204217-150321a-cmcst
• Cisco Dpc3941T Firmware: dpc3941_2.5s3_prod_sey
• Commscope Arris Tg1682G Firmware: 10.0.132.sip.pc20.ct, tg1682_2.2p7s2_prod_sey

References

• https://github.com/BastilleResearch/CableTap/blob/master/doc/advisories/bastille-35.improper-cookie-flags.txt
• https://github.com/BastilleResearch/CableTap/blob/master/doc/advisories/bastille-35.improper-cookie-flags.txt

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