CVE-2009-3727
EPSS 4.2%
描述
Asterisk Open Source 1.2.x before 1.2.35, 1.4.x before 1.4.26.3, 1.6.0.x before 1.6.0.17, and 1.6.1.x before 1.6.1.9; Business Edition A.x.x, B.x.x before B.2.5.12, C.2.x.x before C.2.4.5, and C.3.x.x before C.3.2.2; AsteriskNOW 1.5; and s800i 1.3.x before 1.3.0.5 generate different error messages depending on whether a SIP username is valid, which allows remote attackers to enumerate valid usernames via multiple crafted REGISTER messages with inconsistent usernames in the URI in the To header and the Digest in the Authorization header.
如何修補 CVE-2009-3727
要修補 CVE-2009-3727,請將受影響套件升級到下列已修補版本。
- Debian/asterisk—升級至 1:1.6.2.0~rc6-1 或更新版本
CVE-2009-3727 正在被利用嗎?
低 — EPSS 為 4.2%,目前沒有觀察到大規模利用活動。
受影響套件(1)
- from 0, < 1:1.6.2.0~rc6-1