CVE-2009-0041

Medium

Description

IAX2 in Asterisk Open Source 1.2.x before 1.2.31, 1.4.x before 1.4.23-rc4, and 1.6.x before 1.6.0.3-rc2; Business Edition A.x.x, B.x.x before B.2.5.7, C.1.x.x before C.1.10.4, and C.2.x.x before C.2.1.2.1; and s800i 1.2.x before 1.3.0 responds differently to a failed login attempt depending on whether the user account exists, which allows remote attackers to enumerate valid usernames.

SeverityMedium
CVSS5.0
Exploit probability86. percentile2.7%
ProductAsterisk Business Edition
PublishedJan 14, 2009
First seenJan 14, 2009

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

ProductAffected versionsFixed in
asterisk asterisk_business_editionv ≤ b.2.5.2, v ≤ c.1.0, a, b.1.3.2, b.1.3.3, b.2.2.0, b.2.2.1, b.2.3.1, b.2.3.2, b.2.3.3, b.2.3.4, b.2.3.5, b.2.3.6, b.2.5.0, b.2.5.1, b.2.5.3, c.1.0—
asterisk open_sourcev ≤ 1.2.30.4, v ≤ 1.4.23, v ≤ 1.6.0.3, 1.2.0, 1.2.0beta1, 1.2.0beta2, 1.2.1, 1.2.2, 1.2.3, 1.2.10, 1.2.11, 1.2.12, 1.2.12.1, 1.2.13, 1.2.14, 1.2.15, 1.2.16, 1.2.17, 1.2.18, 1.2.19, 1.2.20, 1.2.21, 1.2.21.1, 1.2.22, 1.2.23, 1.2.24, 1.2.25, 1.2.26, 1.2.26.1, 1.2.26.2, 1.2.27, 1.2.28, 1.2.29, 1.2.30, 1.2.30.2, 1.2.30.3, 1.4.0, 1.4.1, 1.4.2, 1.4.3, 1.4.4, 1.4.5, 1.4.6, 1.4.7, 1.4.7.1, 1.4.8, 1.4.9, 1.4.10, 1.4.10.1, 1.4.11, 1.4.12, 1.4.12.1, 1.4.13, 1.4.14, 1.4.15, 1.4.16, 1.4.16.1, 1.4.16.2, 1.4.17, 1.4.18, 1.4.18.1, 1.4.19, 1.4.19.1, 1.4.19.2, 1.4.20, 1.4.21, 1.4.21.1, 1.4.21.2, 1.4.22, 1.4.22.1, 1.4.22.2, 1.4.23, 1.4_revision_95946, 1.4beta, 1.6.0, 1.6.0.1, 1.6.0.2, 1.6.0.3—
asterisk s800i_appliance1.2—

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