CVE-2008-5313 - Improper Link Resolution Before File Access ('Link Following')

Severity

69%

Complexity

34%

Confidentiality

165%

mailscanner 4.68.8 and other versions before 4.74.16-1 might allow local users to overwrite arbitrary files via a symlink attack on certain temporary files used by the (1) f-prot-autoupdate, (2) clamav-autoupdate, (3) avast-autoupdate, and (4) f-prot-6-autoupdate scripts in /etc/MailScanner/autoupdate/; the (5) bitdefender-wrapper, (6) kaspersky-wrapper, (7) clamav-wrapper, and (8) rav-wrapper scripts in /etc/MailScanner/wrapper/; the (9) Quarantine.pm, (10) TNEF.pm, (11) MessageBatch.pm, (12) WorkArea.pm, and (13) SA.pm scripts in /usr/share/MailScanner/MailScanner/; (14) /usr/sbin/MailScanner; and (15) scripts that load the /etc/MailScanner/mailscanner.conf.with.mcp configuration file.

mailscanner 4.68.8 and other versions before 4.74.16-1 might allow local users to overwrite arbitrary files via a symlink attack on certain temporary files used by the (1) f-prot-autoupdate, (2) clamav-autoupdate, (3) avast-autoupdate, and (4) f-prot-6-autoupdate scripts in /etc/MailScanner/autoupdate/; the (5) bitdefender-wrapper, (6) kaspersky-wrapper, (7) clamav-wrapper, and (8) rav-wrapper scripts in /etc/MailScanner/wrapper/; the (9) Quarantine.pm, (10) TNEF.pm, (11) MessageBatch.pm, (12) WorkArea.pm, and (13) SA.pm scripts in /usr/share/MailScanner/MailScanner/; (14) /usr/sbin/MailScanner; and (15) scripts that load the /etc/MailScanner/mailscanner.conf.with.mcp configuration file.

CVSS 2.0 Base Score 6.9. CVSS Attack Vector: local. CVSS Attack Complexity: medium. CVSS Vector: (AV:L/AC:M/Au:N/C:C/I:C/A:C).

Overview

Type

MailScanner

First reported 16 years ago

2008-12-03 17:30:00

Last updated 14 years ago

2010-12-28 05:00:00

Affected Software

MailScanner 4.68.8-1

4.68.8-1

MailScanner 4.69.9-3

4.69.9-3

MailScanner 4.70.7-1

4.70.7-1

MailScanner 4.71.10-1

4.71.10-1

MailScanner 4.72.5-1

4.72.5-1

MailScanner 4.73.4-2

4.73.4-2

References

http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=506353#44

33117

Vendor Advisory

http://www.mailscanner.info/ChangeLog

[oss-security] 20081128 CVE id request/update: mailscanner: many scripts allow local users to overwrite arbitrary files via symlink attacks

32557

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