Detections
Analytics
RHEL 5 : sendmail (RHSA-2010:0237)
high Nessus Plugin ID 46286
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Synopsis
The remote Red Hat host is missing one or more security updates.Description
Updated sendmail packages that fix two security issues and several bugs are now available for Red Hat Enterprise Linux 5.The Red Hat Security Response Team has rated this update as having low security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.
Sendmail is a very widely used Mail Transport Agent (MTA). MTAs deliver mail from one machine to another. Sendmail is not a client program, but rather a behind-the-scenes daemon that moves email over networks or the Internet to its final destination.
The configuration of sendmail in Red Hat Enterprise Linux was found to not reject the 'localhost.localdomain' domain name for email messages that come from external hosts. This could allow remote attackers to disguise spoofed messages. (CVE-2006-7176)
A flaw was found in the way sendmail handled NUL characters in the CommonName field of X.509 certificates. An attacker able to get a carefully-crafted certificate signed by a trusted Certificate Authority could trick sendmail into accepting it by mistake, allowing the attacker to perform a man-in-the-middle attack or bypass intended client certificate authentication. (CVE-2009-4565)
Note: The CVE-2009-4565 issue only affected configurations using TLS with certificate verification and CommonName checking enabled, which is not a typical configuration.
This update also fixes the following bugs :
* sendmail was unable to parse files specified by the ServiceSwitchFile option which used a colon as a separator.
(BZ#512871)
* sendmail incorrectly returned a zero exit code when free space was low. (BZ#299951)
* the sendmail manual page had a blank space between the -qG option and parameter. (BZ#250552)
* the comments in the sendmail.mc file specified the wrong path to SSL certificates. (BZ#244012)
* the sendmail packages did not provide the MTA capability.
(BZ#494408)
All users of sendmail are advised to upgrade to these updated packages, which resolve these issues.
Solution
Update the affected packages.See Also
https://access.redhat.com/security/cve/cve-2006-7176
Plugin Details
Severity: High
ID: 46286
File Name: redhat-RHSA-2010-0237.nasl
Version: 1.32
Type: local
Agent: unix
Family: Red Hat Local Security Checks
Published: 5/11/2010
Updated: 1/14/2021
Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus
Risk Information
VPR
Risk Factor: Low
Score: 3.4
CVSS v2
Risk Factor: High
Base Score: 7.5
Temporal Score: 5.5
Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P
Vulnerability Information
CPE: p-cpe:/a:redhat:enterprise_linux:sendmail, p-cpe:/a:redhat:enterprise_linux:sendmail-cf, p-cpe:/a:redhat:enterprise_linux:sendmail-devel, p-cpe:/a:redhat:enterprise_linux:sendmail-doc, cpe:/o:redhat:enterprise_linux:5
Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu
Exploit Ease: No known exploits are available
Patch Publication Date: 3/30/2010
Vulnerability Publication Date: 3/27/2007
Reference Information
CVE: CVE-2006-7176, CVE-2009-4565
BID: 37543