AMD fglrx-driver up to 15.6 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 (≈) 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.
6.4	$0-$5k	0.00

Summaryinfo

A vulnerability classified as problematic has been found in AMD fglrx-driver up to 15.6. This impacts an unknown function. Performing a manipulation results in link following. This vulnerability is known as CVE-2015-7723. Attacking locally is a requirement. No exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, was found in AMD fglrx-driver up to 15.6 (Hardware Driver Software). This affects some unknown processing. The manipulation with an unknown input leads to a link following vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

AMD fglrx-driver before 15.7 allows local users to gain privileges via a symlink attack.

The bug was discovered 10/29/2015. The weakness was published 06/07/2017 by Tim Brown as not defined posting (Bugtraq). The advisory is shared at securityfocus.com. This vulnerability is uniquely identified as CVE-2015-7723 since 10/06/2015. The exploitability is told to be easy. An attack has to be approached locally. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 587 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 15.7 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 77357†). Similar entry is available at VDB-102046. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

• Hardware Driver Software

Vendor

• AMD

Name

• fglrx-driver

Version

• 15.0
• 15.1
• 15.2
• 15.3
• 15.4
• 15.5
• 15.6

License

• commercial

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.4

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

NVD Base Score: 7.8
NVD Vector: 🔍

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: 🔍

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

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: fglrx-driver 15.7

Timelineinfo

10/06/2015 🔍
10/29/2015 +23 days 🔍
10/29/2015 +0 days 🔍
06/07/2017 +587 days 🔍
06/07/2017 +0 days 🔍
06/07/2017 +0 days 🔍
12/08/2022 +2010 days 🔍

Sourcesinfo

Advisory: 134121⛔
Researcher: Tim Brown
Status: Not defined

CVE: CVE-2015-7723 (🔍)
GCVE (CVE): GCVE-0-2015-7723
GCVE (VulDB): GCVE-100-102045
SecurityFocus: 77357 - AMD fglrx-driver CVE-2015-7723 Insecure File Creation Privilege Escalation Vulnerability

See also: 🔍

Entryinfo

Created: 06/07/2017 23:16
Updated: 12/08/2022 08:30
Changes: 06/07/2017 23:16 (65), 10/14/2019 11:05 (1), 12/08/2022 08:30 (4)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Discussion

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