CVE-2009-3727

2009-11-1018:30:00

Debian Security Bug Tracker

security-tracker.debian.org

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:N/AC:L/Au:N/C:P/I:N/A:N

EPSS

0.013

Percentile

85.9%

JSON

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.

OSVersionArchitecturePackageVersionFilename
Debian11allasterisk< 1:1.6.2.0~rc6-1asterisk_1:1.6.2.0~rc6-1_all.deb
Debian999allasterisk< 1:1.6.2.0~rc6-1asterisk_1:1.6.2.0~rc6-1_all.deb