Vulnerability in Technicolor Dpc3928sl

CVE-2017-5135

Certain Technicolor devices have an SNMP access-control bypass, possibly involving an ISP customization in some cases. The Technicolor (formerly Cisco) DPC3928SL with firmware D3928SL-P15-13-A386-c3420r55105-160127a could be reached by any SNMP community string from the Internet; also, you can write in the MIB because it provides write properties, aka Stringbleed. NOTE: the string-bleed/StringBleed-CVE-2017-5135 GitHub repository is not a valid reference as of 2017-04-27; it contains Trojan horse code purported to exploit this vulnerability.

EPSS: 0.175 (96.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.

Affected products

Public proof-of-concept exploits

References

  • cve@mitre.org (Technical Description, Third Party Advisory, x_refsource_MISC)
  • cve@mitre.org (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
  • cve@mitre.org (Third Party Advisory, x_refsource_MISC, Press/Media Coverage)

Frequently asked questions

What is CVE-2017-5135?
CVE-2017-5135 is a critical-severity vulnerability in Technicolor Dpc3928sl. CVSS score: 9.1/10. Published 2017-04-27.
How severe is CVE-2017-5135?
Critical severity. CVSS v3 base score is 9.1 out of 10.
Is CVE-2017-5135 known to be exploited?
12 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.