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CVE-2009-3727

N/A

Published: November 10, 2009 at 06:00 PM UTC

Updated: June 16, 2026 at 11:12 PM UTC

3 products affected across 1 vendorAsteriskS800IAsterisknow

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Severity

N/A

Exploit prediction

EPSS 4%

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Asterisk · Digium

95%

1.2.01.2.0 beta11.2.0 beta21.2.0 rc1 1.2.0 rc2 1.2.1 1.2.10 1.2.10 netsec 1.2.11 1.2.11 netsec 1.2.12 1.2.12 netsec 1.2.12.1 1.2.12.1 netsec 1.2.13 1.2.13 netsec 1.2.14 1.2.15 1.2.15 netsec 1.2.16 1.2.16 netsec 1.2.17 1.2.17 netsec 1.2.18 1.2.18 netsec 1.2.19 1.2.19 netsec 1.2.2 1.2.2 netsec 1.2.20 1.2.20 netsec 1.2.21 1.2.21 netsec 1.2.21.1 1.2.21.1 netsec 1.2.22 1.2.22 netsec 1.2.23 1.2.23 netsec 1.2.24 1.2.24 netsec 1.2.25 1.2.25 netsec 1.2.26 1.2.26 netsec 1.2.26.1 1.2.26.1 netsec 1.2.26.2 1.2.26.2 netsec 1.2.27 1.2.28 1.2.28.1 1.2.29 1.2.3 1.2.3 netsec 1.2.30 1.2.30.1 1.2.30.2 1.2.30.3 1.2.30.4 1.2.31 1.2.31.1 1.2.32 1.2.33 1.2.34 1.4.01.4.0 beta11.4.0 beta21.4.0 beta3 1.4.0 beta4 1.4.1 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 1.4.19 1.4.19 rc1 1.4.19 rc2 1.4.19 rc3 1.4.19 rc4 1.4.19.1 1.4.19.2 1.4.2 1.4.20 1.4.20 rc1 1.4.20 rc2 1.4.20 rc3 1.4.20.1 1.4.21 1.4.21 rc1 1.4.21 rc2 1.4.21.1 1.4.21.2 1.4.22 1.4.22 rc1 1.4.22 rc2 1.4.22 rc3 1.4.22 rc4 1.4.22 rc5 1.4.22.1 1.4.22.2 1.4.23 1.4.23 rc1 1.4.23 rc2 1.4.23 rc3 1.4.23 rc4 1.4.23.1 1.4.23.2 1.4.24 1.4.24 rc1 1.4.24.1 1.4.25 1.4.25 rc1 1.4.25.1 1.4.26 1.4.26 rc1 1.4.26 rc2 1.4.26 rc3 1.4.26 rc4 1.4.26 rc5 1.4.26 rc6 1.4.26.1 1.4.26.2 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 1.6.0 1.6.0 beta1 1.6.0 beta2 1.6.0 beta3 1.6.0 beta4 1.6.0 beta5 1.6.0 beta6 1.6.0 beta7 1.6.0 beta7.1 1.6.0 beta8 1.6.0 beta9 1.6.0 rc4 1.6.0 rc5 1.6.0 rc6 1.6.0.1 1.6.0.10 1.6.0.11 1.6.0.11 rc1 1.6.0.11 rc2 1.6.0.14 1.6.0.14 rc1 1.6.0.15 1.6.0.16 1.6.0.16 rc1 1.6.0.16 rc2 1.6.0.2 1.6.0.3 1.6.0.3 rc1 1.6.0.4 rc1 1.6.0.5 1.6.0.6 1.6.0.7 1.6.0.8 1.6.0.9 1.6.1.0 1.6.1.0 rc2 1.6.1.0 rc3 1.6.1.0 rc4 1.6.1.0 rc5 1.6.1.1 1.6.1.10 rc1 1.6.1.10 rc2 1.6.1.2 1.6.1.3 rc1 1.6.1.4 1.6.1.5 1.6.1.5 rc1 1.6.1.6 1.6.1.7 rc1 1.6.1.7 rc2 1.6.1.8 a b 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.2.5.2 b.2.5.3 c c.2.3 c.3.0

Asterisknow · Digium

95%

S800I · Digium

95%

1.3.0 1.3.0.2 1.3.0.3 1.3.0.4

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (12)

x_refsource_CONFIRMVendor Advisory

Source: [email protected]

http://downloads.asterisk.org/pub/security/AST-2009-008.html

VDB Entryx_refsource_OSVDB

Source: [email protected]

http://osvdb.org/59697

Third Party Advisoryx_refsource_SECUNIAVendor Advisory

Source: [email protected]

http://secunia.com/advisories/37265

Third Party Advisoryx_refsource_SECUNIA

Source: [email protected]

http://secunia.com/advisories/37479

Third Party Advisoryx_refsource_SECUNIA

Source: [email protected]

http://secunia.com/advisories/37677

Vendor Advisoryx_refsource_DEBIAN

Source: [email protected]

http://www.debian.org/security/2009/dsa-1952

VDB Entryx_refsource_BIDPatch

Source: [email protected]

http://www.securityfocus.com/bid/36924

VDB Entryx_refsource_SECTRACK

Source: [email protected]

http://www.securitytracker.com/id?1023133

CVSS

5MEDIUM[email protected]

Confidentiality: PARTIAL
Integrity: NONE
Availability: NONE

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-200

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