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CVE-2008-3903

Date: September 4, 2008

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.

Severity Score

Related Resources (12)

http://www.securityfocus.com/bid/34353
http://misel.com/?p=52
https://nvd.nist.gov/vuln/detail/CVE-2008-3903
http://www.debian.org/security/2009/dsa-1952
https://exchange.xforce.ibmcloud.com/vulnerabilities/45059
https://people.canonical.com/~ubuntu-security/cve/CVE-2008-3903
http://www.vupen.com/english/advisories/2009/0933
http://security.gentoo.org/glsa/glsa-200905-01.xml
http://secunia.com/advisories/34982
http://downloads.asterisk.org/pub/security/AST-2009-003.html
http://secunia.com/advisories/37677
https://www.mend.io/vulnerability-database/CVE-2008-3903

Severity Score

Weakness Type (CWE)

Exposure of Sensitive Information to an Unauthorized Actor

CWE-200

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): HIGH
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): LOW
Integrity (I): NONE
Availability (A): NONE

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): MEDIUM
Authentication (AU): SINGLE
Confidentiality (C): PARTIAL
Integrity (I): NONE
Availability (A): NONE
Additional information:

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