CVE-2011-2536
EPSS 0.19%發布日:2011/7/6修改日:2026/4/28
也稱為:DEBIAN-CVE-2011-2536
描述
chan_sip.c in the SIP channel driver in Asterisk Open Source 1.4.x before 1.4.41.2, 1.6.2.x before 1.6.2.18.2, and 1.8.x before 1.8.4.4, and Asterisk Business Edition C.3.x before C.3.7.3, disregards the alwaysauthreject option and generates different responses for invalid SIP requests depending on whether the user account exists, which allows remote attackers to enumerate account names via a series of requests.
受影響套件(1)
- Debian/asteriskfrom 0, < 1:1.8.4.4~dfsg-1