SIP Implementation Vulnerability on Linksys Phone Adapter
CVE-2009-5140

8.8HIGH

Key Information:

Vendor

Linksys
Status
Spa2102 Firmware
Vendor
CVE Published:
12 February 2020

What is CVE-2009-5140?

The SIP implementation on the Linksys SPA2102 phone adapter is susceptible to an authentication challenge flaw. This vulnerability allows remote attackers to gain unauthorized access by exploiting the hashed credentials transmitted in response to invalid authentication attempts. The design flaw relates to the SIP Digest authentication process, making it vulnerable to brute-force attacks. Attackers can leverage this vulnerability to breach security measures and gain control of affected systems.

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References

https://resources.enablesecurity.com/resources/sipdigestl...
x_refsource_MISC
http://voipsa.org/pipermail/voipsec_voipsa.org/2009-April...
x_refsource_MISC

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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