Unrated severityNVD Advisory· Published Nov 10, 2009· Updated Apr 23, 2026

CVE-2009-3727

Description

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.

Affected products

215

Digium/Asterisk210 versions
cpe:2.3:a:digium:asterisk:1.2.0:*:*:*:*:*:*:*+ 209 more
- cpe:2.3:a:digium:asterisk:1.2.0:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.2.0:beta1:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.2.0:beta2:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.2.0:rc1:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.2.0:rc2:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.2.1:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.2.10:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.2.10:netsec:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.2.11:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.2.11:netsec:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.2.12:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.2.12.1:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.2.12.1:netsec:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.2.12:netsec:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.2.13:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.2.13:netsec:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.2.14:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.2.15:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.2.15:netsec:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.2.16:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.2.16:netsec:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.2.17:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.2.17:netsec:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.2.18:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.2.18:netsec:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.2.19:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.2.19:netsec:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.2.2:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.2.20:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.2.20:netsec:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.2.21:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.2.21.1:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.2.21.1:netsec:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.2.21:netsec:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.2.22:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.2.22:netsec:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.2.23:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.2.23:netsec:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.2.24:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.2.24:netsec:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.2.25:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.2.25:netsec:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.2.26:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.2.26.1:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.2.26.1:netsec:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.2.26.2:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.2.26.2:netsec:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.2.26:netsec:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.2.27:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.2.28:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.2.28.1:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.2.29:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.2.2:netsec:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.2.3:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.2.30:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.2.30.1:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.2.30.2:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.2.30.3:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.2.30.4:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.2.31:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.2.31.1:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.2.32:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.2.33:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.2.34:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.2.3:netsec:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.4.0:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.4.0:beta1:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.4.0:beta2:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.4.0:beta3:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.4.0:beta4:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.4.1:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.4.10:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.4.10.1:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.4.11:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.4.12:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.4.12.1:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.4.13:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.4.14:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.4.15:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.4.16:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.4.16.1:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.4.16.2:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.4.17:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.4.18:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.4.19:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.4.19.1:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.4.19.2:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.4.19:rc1:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.4.19:rc2:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.4.19:rc3:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.4.19:rc4:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.4.2:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.4.20:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.4.20.1:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.4.20:rc1:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.4.20:rc2:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.4.20:rc3:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.4.21:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.4.21.1:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.4.21.2:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.4.21:rc1:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.4.21:rc2:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.4.22:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.4.22.1:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.4.22.2:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.4.22:rc1:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.4.22:rc2:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.4.22:rc3:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.4.22:rc4:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.4.22:rc5:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.4.23:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.4.23.1:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.4.23.2:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.4.23:rc1:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.4.23:rc2:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.4.23:rc3:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.4.23:rc4:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.4.24:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.4.24.1:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.4.24:rc1:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.4.25:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.4.25.1:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.4.25:rc1:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.4.26:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.4.26.1:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.4.26.2:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.4.26:rc1:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.4.26:rc2:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.4.26:rc3:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.4.26:rc4:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.4.26:rc5:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.4.26:rc6:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.4.3:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.4.4:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.4.5:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.4.6:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.4.7:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.4.7.1:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.4.8:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.4.9:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.6.0:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.6.0.1:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.6.0.10:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.6.0.11:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.6.0.11:rc1:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.6.0.11:rc2:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.6.0.14:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.6.0.14:rc1:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.6.0.15:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.6.0.16:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.6.0.16:rc1:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.6.0.16:rc2:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.6.0.2:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.6.0.3:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.6.0.3:rc1:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.6.0.4:rc1:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.6.0.5:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.6.0.6:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.6.0.7:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.6.0.8:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.6.0.9:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.6.0:beta1:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.6.0:beta2:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.6.0:beta3:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.6.0:beta4:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.6.0:beta5:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.6.0:beta6:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.6.0:beta7:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.6.0:beta7.1:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.6.0:beta8:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.6.0:beta9:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.6.0:rc4:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.6.0:rc5:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.6.0:rc6:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.6.1.0:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.6.1.0:rc2:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.6.1.0:rc3:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.6.1.0:rc4:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.6.1.0:rc5:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.6.1.1:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.6.1.10:rc1:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.6.1.10:rc2:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.6.1.2:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.6.1.3:rc1:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.6.1.4:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.6.1.5:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.6.1.5:rc1:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.6.1.6:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.6.1.7:rc1:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.6.1.7:rc2:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:1.6.1.8:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:a:-:business:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:b.1.3.2:-:business:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:b.1.3.3:-:business:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:b.2.2.0:-:business:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:b.2.2.1:-:business:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:b.2.3.1:-:business:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:b.2.3.2:-:business:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:b.2.3.3:-:business:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:b.2.3.4:-:business:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:b.2.3.5:-:business:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:b.2.3.6:-:business:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:b.2.5.0:-:business:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:b.2.5.1:-:business:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:b.2.5.2:-:business:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:b.2.5.3:-:business:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:b:-:business:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:c.2.3:-:business:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:c.3.0:-:business:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:c:-:business:*:*:*:*:*
Digium/Asterisknow
cpe:2.3:a:digium:asterisknow:1.5:*:*:*:*:*:*:*
Digium/S800i4 versions
cpe:2.3:h:digium:s800i:1.3.0:*:*:*:*:*:*:*+ 3 more
- cpe:2.3:h:digium:s800i:1.3.0:*:*:*:*:*:*:*
- cpe:2.3:h:digium:s800i:1.3.0.2:*:*:*:*:*:*:*
- cpe:2.3:h:digium:s800i:1.3.0.3:*:*:*:*:*:*:*
- cpe:2.3:h:digium:s800i:1.3.0.4:*:*:*:*:*:*:*

Patches

No patches discovered yet.

Vulnerability mechanics

AI mechanics synthesis has not run for this CVE yet.

References

www.securityfocus.com/bid/36924nvdPatch
downloads.asterisk.org/pub/security/AST-2009-008.htmlnvdVendor Advisory
secunia.com/advisories/37265nvdVendor Advisory
osvdb.org/59697nvd
secunia.com/advisories/37479nvd
secunia.com/advisories/37677nvd
www.debian.org/security/2009/dsa-1952nvd
www.securitytracker.com/idnvd
bugzilla.redhat.com/show_bug.cginvd
bugzilla.redhat.com/show_bug.cginvd
www.redhat.com/archives/fedora-package-announce/2009-November/msg00789.htmlnvd
www.redhat.com/archives/fedora-package-announce/2009-November/msg00838.htmlnvd

News mentions

No linked articles in our index yet.

cvss	0.000
epss	0.001
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000