Gentoo Linux Ebuild 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.
6.2$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in Gentoo Linux. Affected by this vulnerability is an unknown functionality of the component Ebuild. The manipulation leads to access control. This vulnerability is traded as CVE-2004-2778. An attack has to be approached locally. There is no exploit available.

Detailsinfo

A vulnerability was found in Gentoo Linux (affected version not known) and classified as problematic. This issue affects some unknown functionality of the component Ebuild. The manipulation with an unknown input leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-264. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Ebuild in Gentoo may change directory and file permissions depending on the order of installed packages, which allows local users to read or write to restricted directories or execute restricted commands via navigating to the affected directories, or executing the affected commands.

The bug was discovered 01/28/2017. The weakness was shared 06/28/2017 (oss-sec). It is possible to read the advisory at openwall.com. The identification of this vulnerability is CVE-2004-2778 since 01/28/2017. Attacking locally is a requirement. A simple authentication is required for exploitation. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

The vulnerability was handled as a non-public zero-day exploit for at least 150 days. During that time the estimated underground price was around $0-$5k.

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

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.2
VulDB Meta Temp Score: 6.2

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

NVD Base Score: 7.1
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: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/28/2017 🔍
01/28/2017 +0 days 🔍
06/27/2017 +150 days 🔍
06/28/2017 +1 days 🔍
06/28/2017 +0 days 🔍
10/20/2019 +844 days 🔍

Sourcesinfo

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

CVE: CVE-2004-2778 (🔍)
GCVE (CVE): GCVE-0-2004-2778
GCVE (VulDB): GCVE-100-102839

Entryinfo

Created: 06/28/2017 07:45
Updated: 10/20/2019 17:37
Changes: 06/28/2017 07:45 (56), 10/20/2019 17:37 (1)
Complete: 🔍
Cache ID: 216::103

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