Vulnerability CVE-2017-5135


Published: 2017-04-27   Modified: 2017-04-28

Description:
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.

See advisories in our WLB2 database:
Topic
Author
Date
Med.
Technicolor DPC3928SL SNMP Authentication Bypass
nixawk
22.12.2017

Vendor: Technicolor
Product: Dpc3928sl firmware 
Version: d3928sl-p15-13-a386-c3420r55105-160127a;

CVSS2 => (AV:N/AC:L/Au:N/C:P/I:P/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
6.4/10
4.9/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
None

 References:
http://www.securityfocus.com/bid/98092
https://stringbleed.github.io/
https://www.reddit.com/r/netsec/comments/67qt6u/cve_20175135_snmp_authentication_bypass/

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