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Unrated severityNVD Advisory· Published Sep 4, 2008· Updated Apr 23, 2026

CVE-2008-3903

CVE-2008-3903

Description

Asterisk Open Source 1.2.x before 1.2.32, 1.4.x before 1.4.24.1, and 1.6.0.x before 1.6.0.8; Asterisk Business Edition A.x.x, B.x.x before B.2.5.8, C.1.x.x before C.1.10.5, and C.2.x.x before C.2.3.3; s800i 1.3.x before 1.3.0.2; and Trixbox PBX 2.6.1, when Digest authentication and authalwaysreject are enabled, generates different responses depending on whether a SIP username is valid, which allows remote attackers to enumerate valid usernames.

Affected products

5
  • Asterisk/P B X4 versions
    cpe:2.3:a:asterisk:p_b_x:1.2:*:*:*:*:*:*:*+ 3 more
    • cpe:2.3:a:asterisk:p_b_x:1.2:*:*:*:*:*:*:*
    • cpe:2.3:a:asterisk:p_b_x:1.2.22:*:*:*:*:*:*:*
    • cpe:2.3:a:asterisk:p_b_x:1.4.21.1:*:*:*:*:*:*:*
    • cpe:2.3:a:asterisk:p_b_x:1.6:*:*:*:*:*:*:*
  • Trixbox/Pbx
    cpe:2.3:a:trixbox:pbx:2.6.1:*:*:*:*:*:*:*

Patches

0

No patches discovered yet.

Vulnerability mechanics

AI mechanics synthesis has not run for this CVE yet.

References

9

News mentions

0

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