VDB-157255 · CVE-2020-7667 · GCVE-0-2020-7667

SAS Software go-rpmutils CPIO Extraction path traversal

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.
6.8	$0-$5k	0.00

Summaryinfo

A vulnerability was found in SAS Software go-rpmutils. It has been rated as critical. Affected is an unknown function of the component CPIO Extraction Handler. This manipulation with the input .. causes path traversal. This vulnerability is registered as CVE-2020-7667. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability was found in SAS Software go-rpmutils (version unknown). It has been declared as critical. Affected by this vulnerability is an unknown function of the component CPIO Extraction Handler. The manipulation with the input value .. leads to a path traversal vulnerability. The CWE definition for the vulnerability is CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

The CPIO extraction functionality doesn't sanitize the paths of the archived files for leading and non-leading ".." which leads in file extraction outside of the current directory. Note: the fixing commit was applied to all affected versions which were re-released.

The weakness was published 06/24/2020 (GitHub Repository). It is possible to read the advisory at github.com. This vulnerability is known as CVE-2020-7667 since 01/21/2020. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1006 according to MITRE ATT&CK.

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

SAS Software

Name

go-rpmutils

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.4
VulDB Meta Temp Score: 7.1

VulDB Base Score: 7.3
VulDB Temp Score: 6.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Path traversal
CWE: CWE-22
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

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: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/21/2020 🔍
06/24/2020 +155 days 🔍
06/26/2020 +2 days 🔍
10/27/2020 +123 days 🔍

Sourcesinfo

Advisory: github.com
Status: Not defined

CVE: CVE-2020-7667 (🔍)
GCVE (CVE): GCVE-0-2020-7667
GCVE (VulDB): GCVE-100-157255

Entryinfo

Created: 06/26/2020 08:49
Updated: 10/27/2020 09:09
Changes: 06/26/2020 08:49 (37), 06/26/2020 08:54 (11), 10/27/2020 09:09 (1)
Complete: 🔍
Cache ID: 216::103