Detections
Analytics
RHEL 4 / 5 : neon (RHSA-2009:1452)
medium Nessus Plugin ID 41031
Synopsis
The remote Red Hat host is missing one or more security updates.Description
Updated neon packages that fix two security issues are now available for Red Hat Enterprise Linux 4 and 5.This update has been rated as having moderate security impact by the Red Hat Security Response Team.
neon is an HTTP and WebDAV client library, with a C interface. It provides a high-level interface to HTTP and WebDAV methods along with a low-level interface for HTTP request handling. neon supports persistent connections, proxy servers, basic, digest and Kerberos authentication, and has complete SSL support.
It was discovered that neon is affected by the previously published 'null prefix attack', caused by incorrect handling of NULL characters in X.509 certificates. If an attacker is able to get a carefully-crafted certificate signed by a trusted Certificate Authority, the attacker could use the certificate during a man-in-the-middle attack and potentially confuse an application using the neon library into accepting it by mistake. (CVE-2009-2474)
A denial of service flaw was found in the neon Extensible Markup Language (XML) parser. A remote attacker (malicious DAV server) could provide a specially crafted XML document that would cause excessive memory and CPU consumption if an application using the neon XML parser was tricked into processing it. (CVE-2009-2473)
All neon users should upgrade to these updated packages, which contain backported patches to correct these issues. Applications using the neon HTTP and WebDAV client library, such as cadaver, must be restarted for this update to take effect.
Solution
Update the affected neon and / or neon-devel packages.See Also
https://access.redhat.com/security/cve/cve-2009-2473
Plugin Details
Severity: Medium
ID: 41031
File Name: redhat-RHSA-2009-1452.nasl
Version: 1.26
Type: local
Agent: unix
Family: Red Hat Local Security Checks
Published: 9/22/2009
Updated: 1/14/2021
Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 5.5
CVSS v2
Risk Factor: Medium
Base Score: 6.8
Temporal Score: 5.3
Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P
Vulnerability Information
CPE: cpe:/o:redhat:enterprise_linux:5, p-cpe:/a:redhat:enterprise_linux:neon, cpe:/o:redhat:enterprise_linux:4, p-cpe:/a:redhat:enterprise_linux:neon-devel, cpe:/o:redhat:enterprise_linux:5.4, cpe:/o:redhat:enterprise_linux:4.8
Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 9/21/2009
Vulnerability Publication Date: 8/21/2009
Reference Information
CVE: CVE-2009-2473, CVE-2009-2474