Pine Environment Variable URL Shell Interpreting Vulnerability

BID:3815

Info

Pine Environment Variable URL Shell Interpreting Vulnerability

Bugtraq ID: 3815
Class: Design Error
CVE:
Remote: Yes
Local: No
Published: Jan 05 2002 12:00AM
Updated: Jan 05 2002 12:00AM
Credit: This vulnerability was originally discovered by Jim Hebert <[email protected]> on November 18, 1999, and was rediscovered by zen-parse <[email protected]> October 20, 2001. It was reannounced to Bugtraq on January 5, 2002.
Vulnerable: University of Washington Pine 4.33
- FreeBSD FreeBSD 4.4
- FreeBSD FreeBSD 4.3
- FreeBSD FreeBSD 4.2
+ HP Secure OS software for Linux 1.0
+ Redhat Linux 7.2 ia64
 + Redhat Linux 7.2 i386
 + Redhat Linux 7.1 ia64
 + Redhat Linux 7.1 i386
 + Redhat Linux 7.1 alpha
 + SuSE Linux 7.3 sparc
 + SuSE Linux 7.3 ppc
 + SuSE Linux 7.3 i386
 + SuSE Linux 7.3
+ SuSE Linux 7.2 i386
 + SuSE Linux 7.2
+ SuSE Linux 7.1 sparc
 + SuSE Linux 7.1 ppc
 + SuSE Linux 7.1 alpha
 + SuSE Linux 7.1
University of Washington Pine 4.30
University of Washington Pine 4.21
+ Redhat Linux 7.0 i386
 + Redhat Linux 7.0 alpha
 + Redhat Linux 6.2 sparc
 + Redhat Linux 6.2 i386
 + Redhat Linux 6.2 alpha
 + Slackware Linux 7.1
+ Slackware Linux 7.0
University of Washington Pine 4.20
+ Turbolinux Turbolinux Workstation 6.0
Not Vulnerable: University of Washington Pine 4.44
+ EnGarde Secure Linux 1.0.1
+ Redhat Enterprise Linux AS 2.1 IA64
 + Redhat Enterprise Linux AS 2.1
 + Redhat Enterprise Linux ES 2.1 IA64
 + Redhat Enterprise Linux ES 2.1
 + Redhat Enterprise Linux WS 2.1 IA64
 + Redhat Enterprise Linux WS 2.1
 + Redhat Linux Advanced Work Station 2.1
+ Sun Cobalt Qube 3
+ Sun Cobalt RaQ 4
+ Sun Cobalt RaQ 550
+ Sun Cobalt RaQ XTR
+ Sun Linux 5.0.7
+ Sun Linux 5.0
+ SuSE Linux 8.1
+ SuSE Linux 8.0 i386
 + SuSE Linux 8.0

Discussion

Pine Environment Variable URL Shell Interpreting Vulnerability

Pine is a freely available, open source email client. It is distributed and maintained by Washington University.

A problem with Pine has been discovered that could make it possible to execute arbitrary commands. The problem is in the handling of URLs with encapsulated environment variables.

The problem is in the handling of URLs with environment variables in them. An email sent to a user with an encoded environment variable and command in the URL could be used to execute the encoded command with the privileges of the user receiving the mail. This could make it possible to perform one of any number of commands as the user receiving the mail. This vulnerability is only present in email clients that have had a URL handler configured.

Exploit / POC

Pine Environment Variable URL Shell Interpreting Vulnerability

Currently the SecurityFocus staff are not aware of any exploits for this issue. If you feel we are in error or are aware of more recent information, please mail us at: [email protected] <mailto:[email protected]>.

Solution / Fix

Pine Environment Variable URL Shell Interpreting Vulnerability

Solution:
HP Secure OS software for Linux 1.0 users should download and apply the Red Hat RPMs.

Vendor fixes available:


University of Washington Pine 4.20

University of Washington Pine 4.21

University of Washington Pine 4.30

University of Washington Pine 4.33

References

Pine Environment Variable URL Shell Interpreting Vulnerability

References:

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