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.
4.0	$0-$5k	0.00

A vulnerability, which was classified as problematic, has been found in Llvm Clang 3.5. Affected by this issue is the function GetHTMLRunDir of the component Utility. The manipulation with an unknown input 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. CVE summarizes:

The GetHTMLRunDir function in the scan-build utility in Clang 3.5 and earlier allows local users to obtain sensitive information or overwrite arbitrary files via a symlink attack on temporary directories with predictable names.

The weakness was shared 04/23/2014 by Jakub Wilk (Website). The advisory is shared for download at bugs.debian.org. This vulnerability is handled as CVE-2014-2893 since 04/17/2014. The attack needs to be approached locally. No form of authentication is required for exploitation. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 81254 (openSUSE Security Update : llvm (openSUSE-2015-122)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at X-Force (93752) and Tenable (81254).

Productinfo

Vendor

• Llvm

Name

• Clang

Version

• 3.5

CPE 2.3info

• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.0
VulDB Meta Temp Score: 4.0

VulDB Base Score: 4.0
VulDB Temp Score: 4.0
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: Link following
CWE: CWE-59
CAPEC: 🔍
ATT&CK: 🔍

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: 81254
Nessus Name: openSUSE Security Update : llvm (openSUSE-2015-122)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

04/16/2014 🔍
04/16/2014 +0 days 🔍
04/17/2014 +1 days 🔍
04/23/2014 +6 days 🔍
04/23/2014 +0 days 🔍
02/10/2015 +293 days 🔍
02/23/2015 +13 days 🔍
03/25/2015 +30 days 🔍
03/15/2022 +2547 days 🔍

Sourcesinfo

Advisory: bugs.debian.org
Researcher: Jakub Wilk
Status: Not defined

CVE: CVE-2014-2893 (🔍)
X-Force: 93752
Vulnerability Center: 48717 - Clang Scan-Build 3.5 and Earlier Local Information Disclosure via a Symlink Attack in GetHTMLRunDir Function, Low
SecurityFocus: 66989 - Clang 'Scan-Build' Utility Insecure Temporary File Handling Vulnerability

Entryinfo

Created: 03/25/2015 16:45
Updated: 03/15/2022 14:35
Changes: 03/25/2015 16:45 (60), 06/20/2017 08:50 (5), 03/15/2022 14:35 (3)
Complete: 🔍

Discussion

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