Race condition in ProFTPD



Published: 2013-01-24 | Updated: 2020-08-11
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2012-6095
CWE-ID CWE-362
Exploitation vector Network
Public exploit N/A
Vulnerable software
Subscribe 		ProFTPD
Server applications / File servers (FTP/HTTP)

Vendor ProFTPD

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Race condition

EUVDB-ID: #VU43153

Risk: Low

CVSSv3.1: 2.7 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2012-6095

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to manipulate data.

ProFTPD before 1.3.5rc1, when using the UserOwner directive, allows local users to modify the ownership of arbitrary files via a race condition and a symlink attack on the (1) MKD or (2) XMKD commands.

Mitigation

Install update from vendor's website.

Vulnerable software versions

ProFTPD: 1.2.0 - 1.3.4

External links

http://bugs.proftpd.org/show_bug.cgi?id=3841
http://proftpd.org/docs/NEWS-1.3.5rc1
http://secunia.com/advisories/51823
http://www.debian.org/security/2013/dsa-2606
http://www.openwall.com/lists/oss-security/2013/01/07/3


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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