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Vulnerability Assessment & Network Security Forums |
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If through a vulnerability assessment, a network security issue is detected for the vulnerability below, applying the appropriate security patches in a timely matter is very important. If you have detected that your system has already been compromised, following CERT's Network Security recovery document will assist with recommended steps for system recovery. Home >> Browse Vulnerability Assessment Database >> Red Hat Local Security Checks >> RHSA-2003-055: rxvt Vulnerability Assessment Details
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RHSA-2003-055: rxvt |
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Check for the version of the rxvt packages Detailed Explanation for this Vulnerability Assessment Updated rxvt packages are available which fix a number of vulnerabilities in the handling of escape sequences. [Updated 12 March 2003] Added packages for Red Hat Enterprise Linux ES and Red Hat Enterprise Linux WS Rxvt is a color VT102 terminal emulator for the X Window System. A number of issues have been found in the escape sequence handling of Rxvt. These could be potentially exploited if a possible hacker can cause carefully crafted escape sequences to be displayed on an rxvt terminal being used by their victim. One of the features which most terminal emulators support is the ability for the shell to set the title of the window using an escape sequence. Certain xterm variants, including rxvt, also provide an escape sequence for reporting the current window title. This essentially takes the current title and places it directly on the command line. Since it is not possible to embed a carriage return into the window title itself, the attacker would have to convince the victim to press the Enter key for the title to be processed as a command, although the attacker can perform a number of actions to increase the likelihood of this happening. A certain escape sequence when displayed in rxvt will create an arbitrary file. It is possible to add malicious items to the dynamic menus through an escape sequence. Users of Rxvt are advised to upgrade to these errata packages which contain a patch to disable the title reporting functionality and patches to correct the other issues. Red Hat would like to thank H D Moore for bringing these issues to our attention. Solution : http://rhn.redhat.com/errata/RHSA-2003-055.html Network Security Threat Level: High Networks Security ID: Vulnerability Assessment Copyright: This script is Copyright (C) 2004 Tenable Network Security |
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