CVE-2009-5140

The SIP implementation on the Linksys SPA2102 phone adapter provides hashed credentials in a response to an invalid authentication challenge, which makes it easier for remote attackers to obtain access via a brute-force attack, related to a "SIP Digest Leak" issue.

Date published : 2020-02-12

http://voipsa.org/pipermail/voipsec_voipsa.org/2009-April/002946.html

https://resources.enablesecurity.com/resources/sipdigestleak-tut.pdf