checkinstall 1.6.2 link following

CVSS Meta Temp Score
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CTI Interest Score
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6.5$0-$5k0.00

Summaryinfo

A vulnerability was found in checkinstall 1.6.2. It has been rated as critical. Affected by this issue is some unknown functionality. This manipulation causes link following. This vulnerability is tracked as CVE-2020-25031. The attack is restricted to local execution. No exploit exists.

Detailsinfo

A vulnerability has been found in checkinstall 1.6.2 and classified as critical. Affected by this vulnerability is an unknown function. The manipulation with an unknown input leads to a link following vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

checkinstall 1.6.2, when used to create a package that contains a symlink, may trigger the creation of a mode 0777 executable file.

The weakness was disclosed 08/31/2020. This vulnerability is known as CVE-2020-25031 since 08/31/2020. The exploitation appears to be easy. Attacking locally is a requirement. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available.

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

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

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

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

NVD Base Score: 7.8
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: 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: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

08/31/2020 🔍
08/31/2020 +0 days 🔍
08/31/2020 +0 days 🔍
08/31/2020 +0 days 🔍

Sourcesinfo

Status: Not defined

CVE: CVE-2020-25031 (🔍)
GCVE (CVE): GCVE-0-2020-25031
GCVE (VulDB): GCVE-100-160447

Entryinfo

Created: 08/31/2020 08:28
Updated: 08/31/2020 08:33
Changes: 08/31/2020 08:28 (33), 08/31/2020 08:33 (17)
Complete: 🔍
Cache ID: 216::103

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