CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.1	$0-$5k	0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in ProFTPD up to 1.3.4. This impacts an unknown function of the component FTPD. Executing a manipulation of the argument MKD/XMKD can lead to race condition. This vulnerability is handled as CVE-2012-6095. There is not any exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability has been found in ProFTPD up to 1.3.4 (File Transfer Software) and classified as problematic. This vulnerability affects an unknown functionality of the component FTPD. The manipulation of the argument MKD/XMKD with an unknown input leads to a race condition vulnerability. The CWE definition for the vulnerability is CWE-362. The product contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

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.

The weakness was released 01/04/2013 by Jann Horn as Bug 3765 as confirmed changelog entry (Website). The advisory is shared for download at proftpd.org. The public release was coordinated with the vendor. This vulnerability was named CVE-2012-6095 since 12/06/2012. The exploitation appears to be easy. The attack needs to be approached locally. The successful exploitation needs a single authentication. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 66970 (ProFTPD FTP Command Handling Symlink Arbitrary File Overwrite), which helps to determine the existence of the flaw in a target environment. It is assigned to the family FTP. The commercial vulnerability scanner Qualys is able to test this issue with plugin 121476 (Solaris 11.1 Support Repository Update (SRU) 11.4.0 Missing).

Upgrading to version 1.3.5rc1 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (66970), SecurityFocus (BID 57172†), Secunia (SA51823†), SecurityTracker (ID 1028040†) and Vulnerability Center (SBV-38219†). Entry connected to this vulnerability is available at VDB-7244. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

• File Transfer Software

Name

• ProFTPD

Version

• 1.2.0
• 1.2.1
• 1.2.2
• 1.2.3
• 1.2.4
• 1.2.5
• 1.2.6
• 1.2.7
• 1.2.8
• 1.2.9
• 1.2.10
• 1.3.0
• 1.3.1
• 1.3.2
• 1.3.3
• 1.3.4

License

• open-source

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Race condition
CWE: CWE-362
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 66970
Nessus Name: ProFTPD FTP Command Handling Symlink Arbitrary File Overwrite
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 892606
OpenVAS Name: Debian Security Advisory DSA 2606-1 (proftpd-dfsg - symlink race
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: ProFTPD 1.3.5rc1

Timelineinfo

11/08/2012 🔍
11/08/2012 +0 days 🔍
12/06/2012 +28 days 🔍
01/04/2013 +29 days 🔍
01/04/2013 +0 days 🔍
01/14/2013 +9 days 🔍
01/24/2013 +10 days 🔍
01/24/2013 +0 days 🔍
01/28/2013 +4 days 🔍
01/31/2013 +3 days 🔍
06/24/2013 +144 days 🔍
12/24/2024 +4201 days 🔍

Sourcesinfo

Advisory: Bug 3765
Researcher: Jann Horn
Status: Confirmed
Confirmation: 🔍
Coordinated: 🔍

CVE: CVE-2012-6095 (🔍)
GCVE (CVE): GCVE-0-2012-6095
GCVE (VulDB): GCVE-100-7456

OVAL: 🔍

SecurityFocus: 57172 - ProFTPD Race Condition Local Privilege Escalation Vulnerability
Secunia: 51823 - Debian update for proftpd-dfsg, Less Critical
SecurityTracker: 1028040 - ProFTPD MKD/XMKD Race Condition Lets Local Users Gain Elevated Privileges
Vulnerability Center: 38219 - ProFTPD <1.3.5rc1 Local Modification of File Ownership via the MKD or XMDK Commands, Low

See also: 🔍

Entryinfo

Created: 01/28/2013 13:24
Updated: 12/24/2024 09:33
Changes: 01/28/2013 13:24 (82), 04/24/2017 10:04 (4), 04/22/2021 14:03 (3), 12/24/2024 09:33 (16)
Complete: 🔍
Cache ID: 216:FBA:103

Discussion

Want to stay up to date on a daily basis?

Enable the mail alert feature now!