PT-2010-1031 · Sendmail+2 · Sendmail+2

Published 2010-01-04 · Updated 2017-09-19 · CVE-2009-4565

Positive Technologies (AI Summary)

CVSS v2.0

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions sendmail versions prior to 8.14.4

Description The issue allows man-in-the-middle attackers to spoof arbitrary SSL-based SMTP servers via a crafted server certificate issued by a legitimate Certification Authority. It also allows remote attackers to bypass intended access restrictions via a crafted client certificate issued by a legitimate Certification Authority. This is related to the handling of a '0' character in a Common Name (CN) field of an X.509 certificate.

Recommendations For sendmail versions prior to 8.14.4, update to version 8.14.4 or later to resolve the issue. As a temporary workaround, consider restricting the use of SSL-based SMTP servers and client certificates until a patch is applied. Avoid using crafted server or client certificates that may exploit this issue.

Fix

Weakness Enumeration

CWE-310

Related Identifiers

BDU:2015-03060

CVE-2009-4565

DSA-1985-1

HPSBUX02508

RHSA-2010:0237

RHSA-2010_0237

RHSA-2011:0262

RHSA-2011_0262

Affected Products

Hp-Ux

Red Hat

Sendmail

References · 32

• http://sendmail.org/releases/8.14.4 · Patch
• https://osv.dev/vulnerability/CVE-2009-4565 · Vendor Advisory
• http://marc.info/?l=bugtraq&m=126953289726317&w=2 · Vendor Advisory
• http://security.gentoo.org/glsa/glsa-201206-30.xml · Vendor Advisory
• http://secunia.com/advisories/37998 · Vendor Advisory
• http://debian.org/security/2010/dsa-1985 · Vendor Advisory
• http://redhat.com/support/errata/RHSA-2011-0262.html · Vendor Advisory
• http://vupen.com/english/advisories/2009/3661 · Vendor Advisory
• http://sunsolve.sun.com/search/document.do?assetkey=1-77-1021797.1-1 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2009-4565 · Vendor Advisory
• http://lists.opensuse.org/opensuse-security-announce/2010-03/msg00004.html · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2009-4565 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-4565 · Security Note
• https://bdu.fstec.ru/vul/2015-03060 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2009-4565 · Vendor Advisory