Security Advisory SA12596 - sudo Arbitrary File Reading Vulnerability

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Secunia Advisory SA12596

sudo Arbitrary File Reading Vulnerability

Secunia Advisory

SA12596

Release Date

2004-09-20

Last Update

2005-02-22

Popularity

10,915 views

Comments

0 comments

Criticality level

Less critical

Impact

Exposure of sensitive information

Where

Local system

Authentication level

This information is available to Secunia VIM customers

Report reliability

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Solution Status

Vendor Patch

Systems affected

This information is available to Secunia VIM customers

Approve distribution

This information is available to Secunia VIM customers

Remediation status

Secunia CSI, Secunia PSI

Automated scanning

Secunia CSI, Secunia PSI

Software:

Sudo 1.x

Secunia CVSS Score

This information is available to Secunia VIM Customers

CVE Reference(s)

CVE-2004-1689 CVSS score available to Secunia VIM customers

Description

Reznic Valery has reported a vulnerability in sudo, which can be exploited by malicious, local users to read arbitrary files.

The problem is caused due to insufficient validation of symbolic links when sudoedit ("sudo -u" option) copies temporary files. This can be exploited by replacing a temporary file with a symbolic link referencing an arbitrary file in order to get read access.

Successful exploitation requires access to run sudoedit (sudo -u option).

The vulnerability has been reported in version 1.6.8.

Solution
Update to version 1.6.8p1.
Further details available to Secunia VIM customers

Provided and/or discovered by
Reznic Valery

Changelog
Further details available to Secunia VIM customers

Original Advisory
http://www.sudo.ws/sudo/alerts/sudoedit.html

Other references
Further details available to Secunia VIM customers

Deep Links
Links available to Secunia VIM customers

Do you have additional information related to this advisory?

Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

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Secunia Advisory SA12596

sudo Arbitrary File Reading Vulnerability

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