PT-2008-6619 · Digium · Asterisk Business Edition+1

Jon Leren Scho/Pzinsky · Published 2008-12-17 · Updated 2018-10-11 · CVE-2008-5558

Positive Technologies (AI Summary)

CVSS v2.0

4.3

Medium

Base vector

AV:N/AC:M/Au:N/C:N/I:N/A:P

Name of the Vulnerable Software and Affected Versions Asterisk Open Source versions 1.2.26 through 1.2.30.3 Asterisk Business Edition versions B.2.3.5 through B.2.5.5

Description The issue allows remote attackers to cause a denial of service (crash) via authentication attempts involving an unknown user or a user using hostname matching, when realtime IAX2 users are enabled.

Recommendations For Asterisk Open Source versions 1.2.26 through 1.2.30.3, consider disabling realtime IAX2 users as a temporary workaround until a patch is available. For Asterisk Business Edition versions B.2.3.5 through B.2.5.5, restrict access to the IAX2 authentication mechanism to minimize the risk of exploitation.

Fix

DoS

Improper Authentication

Weakness Enumeration

CWE-287

Related Identifiers

CVE-2008-5558

Affected Products

Asterisk Business Edition

Asterisk Open Source

References · 15

• https://nvd.nist.gov/vuln/detail/CVE-2008-5558 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2008-5558 · Vendor Advisory
• http://secunia.com/advisories/32956 · Vendor Advisory
• http://security.gentoo.org/glsa/glsa-200905-01.xml · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2008-5558 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2008-5558 · Vendor Advisory
• http://securityfocus.com/bid/32773 · Note
• http://osvdb.org/50675 · Note
• http://securityfocus.com/archive/1/499117/100/0/threaded · Note
• http://downloads.digium.com/pub/security/AST-2008-012.html · Note
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-5558 · Note
• http://secunia.com/advisories/34982 · Note
• http://securitytracker.com/id?1021378 · Note
• http://vupen.com/english/advisories/2008/3403 · Note
• http://securityreason.com/securityalert/4769 · Note