foo2zjs on Debian/Ubuntu Temp File /tmp/foo2zjs Symlink link following

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 (≈)
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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.
5.2$0-$5k0.00

Summaryinfo

A vulnerability has been found in foo2zjs on Debian/Ubuntu and classified as problematic. This affects an unknown function of the file /tmp/foo2zjs of the component Temp File Handler. The manipulation as part of Symlink leads to link following. This vulnerability is referenced as CVE-2011-2684. The attack can only be performed from a local environment. No exploit is available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in foo2zjs on Debian/Ubuntu and classified as problematic. This issue affects an unknown part of the file /tmp/foo2zjs of the component Temp File Handler. The manipulation as part of a Symlink leads to a link following vulnerability. Using CWE to declare the problem leads to CWE-59. The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

foo2zjs before 20110722dfsg-3ubuntu1 as packaged in Ubuntu, 20110722dfsg-1 as packaged in Debian unstable, and 20090908dfsg-5.1+squeeze0 as packaged in Debian squeeze create temporary files insecurely, which allows local users to write over arbitrary files via a symlink attack on /tmp/foo2zjs.

The bug was discovered 07/11/2011. The weakness was published 10/23/2017 (oss-sec). The advisory is shared at openwall.com. The identification of this vulnerability is CVE-2011-2684 since 07/11/2011. An attack has to be approached locally. A simple authentication is necessary for exploitation. Technical details are known, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 2296 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 20090908dfsg-5.1+squeeze0, 20110722dfsg-1 or 20110722dfsg-3ubuntu1 eliminates this vulnerability.

Similar entries are available at VDB-108315, VDB-108316, VDB-108544 and VDB-112647. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.3

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

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Link following
CWE: CWE-59
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: foo2zjs 20090908dfsg-5.1+squeeze0/20110722dfsg-1/20110722dfsg-3ubuntu1

Timelineinfo

07/11/2011 🔍
07/11/2011 +0 days 🔍
10/23/2017 +2296 days 🔍
10/23/2017 +0 days 🔍
10/24/2017 +1 days 🔍
11/30/2019 +767 days 🔍

Sourcesinfo

Advisory: openwall.com
Status: Not defined

CVE: CVE-2011-2684 (🔍)
GCVE (CVE): GCVE-0-2011-2684
GCVE (VulDB): GCVE-100-108545
See also: 🔍

Entryinfo

Created: 10/24/2017 10:09
Updated: 11/30/2019 09:02
Changes: 10/24/2017 10:09 (60), 11/30/2019 09:02 (1)
Complete: 🔍
Cache ID: 216:54D:103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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