Cisco Security Advisory
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A vulnerability in the do_rewritelog() function of Apache HTTP Server could allow an unauthenticated, remote attacker to gain access to sensitive information.
The vulnerability is due to improper handling of certain escape sequences by the affected software. An unauthenticated, remote attacker could exploit this vulnerability by sending a crafted HTTP request to the targeted device. Processing the crafted request could allow certain escape sequences to be written to the log file. If an attacker views these sequences in the log file with a terminal emulator, the attacker could execute arbitrary commands on the targeted system.
Apache has confirmed this vulnerability and released updated software.
To exploit the vulnerability, the attacker must submit crafted HTTP requests to the system. In a typical network configuration, the attacker would likely need access to trusted, internal networks to submit crafted requests to the targeted system. This access requirement could reduce the likelihood of a successful exploit.
According to the vendor, the updated Apache HTTP Server version 2.0.65 will be released in September 2013.
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Apache.org has released security advisories at the following links: Revision 1469311 and CVE-2013-1862
FreeBSD has released a VuXML document at the following link: apache22 -- mod_rewrite vulnerability
HP has released security bulletin c03922406 at the following link: HPSBUX02927 SSRT101288
MontaVista Software released a security alert on July 11, 2013, for registered users at the following link: MontaVista Security Fixes
Oracle has released patches for registered users at the following link: Solaris 11.1 11.1.11.4.0
Red Hat has released an official CVE statement and security advisories for bug 953729 at the following links: CVE-2013-1862, RHSA-2013:1133, RHSA-2013:1134, RHSA-2013:1207, RHSA-2013:1208, and RHSA-2013:1209
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Administrators are advised to apply the appropriate updates.
Administrators are advised to allow only trusted users to have network access.
Administrators are advised to monitor affected systems.
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Apache.org has released updated software at the following links:
FreeBSD releases ports collection updates at the following link: Ports Collection Index
HP has released updated software for registered users at the following links:
MontaVista Software has released updated software at the following links:HP-UX 11i Release
HPUXWS22ATW-B328-11-23-32.depot
HPUXWS22ATW-B328-11-23-64.depot
HPUXWS22ATW-B328-11-31-32.depot
Oracle has released a security advisory at the following link: CVE-2013-1862
Red Hat has released updated software for registered subscribers at the following link: Red Hat Network
Red Hat packages can be updated on Red Hat Enterprise Linux versions 5 and later using the yum tool.
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The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory.
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To learn about Cisco security vulnerability disclosure policies and publications, see the Security Vulnerability Policy. This document also contains instructions for obtaining fixed software and receiving security vulnerability information from Cisco.
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Show LessVersion Description Section Status Date 1.0 Initial Release NA Final 2013-May-30
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