t-coffee up to 11.00 ~/.t_coffee access control

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.
4.7$0-$5k0.00

Summaryinfo

A vulnerability labeled as problematic has been found in t-coffee up to 11.00. Affected by this vulnerability is an unknown functionality of the file ~/.t_coffee. The manipulation results in access control. This vulnerability is known as CVE-2015-8621. Attacking locally is a requirement. No exploit is available. The affected component should be upgraded.

Detailsinfo

A vulnerability classified as problematic has been found in t-coffee up to 11.00. Affected is an unknown part of the file ~/.t_coffee. The manipulation with an unknown input leads to a access control vulnerability. CWE is classifying the issue as CWE-264. This is going to have an impact on integrity, and availability. CVE summarizes:

t-coffee before 11.00.8cbe486-2 allows local users to write to ~/.t_coffee globally.

The bug was discovered 12/23/2015. The weakness was published 08/07/2017 (oss-sec). The advisory is shared for download at openwall.com. This vulnerability is traded as CVE-2015-8621 since 12/23/2015. The exploitability is told to be easy. The attack needs to be approached locally. The exploitation doesn't require any form of authentication. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1068.

The vulnerability was handled as a non-public zero-day exploit for at least 593 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 11.00.8cbe486-2 eliminates this vulnerability.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.9
VulDB Meta Temp Score: 4.8

VulDB Base Score: 4.4
VulDB Temp Score: 4.2
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: Access control
CWE: CWE-264
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: t-coffee 11.00.8cbe486-2

Timelineinfo

12/23/2015 🔍
12/23/2015 +0 days 🔍
08/07/2017 +593 days 🔍
08/07/2017 +0 days 🔍
08/08/2017 +1 days 🔍
11/04/2019 +818 days 🔍

Sourcesinfo

Advisory: openwall.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2015-8621 (🔍)
GCVE (CVE): GCVE-0-2015-8621
GCVE (VulDB): GCVE-100-104940

Entryinfo

Created: 08/08/2017 12:24
Updated: 11/04/2019 13:34
Changes: 08/08/2017 12:24 (58), 11/04/2019 13:34 (1)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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