Vulnerability DatabaseCVE-2021-4287
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CVE-2021-4287
December 27, 2022
A vulnerability, which was classified as problematic, was found in ReFirm Labs binwalk up to 2.3.2. Affected is an unknown function of the file src/binwalk/modules/extractor.py of the component Archive Extraction Handler. The manipulation leads to symlink following. It is possible to launch the attack remotely. Upgrading to version 2.3.3 is able to address this issue. The name of the patch is fa0c0bd59b8588814756942fe4cb5452e76c1dcd. It is recommended to upgrade the affected component. The identifier of this vulnerability is VDB-216876.
Related Resources (7)
https://github.com/ReFirmLabs/binwalk/commit/fa0c0bd59b8588814756942fe4cb5452e76c1dcd
https://github.com/ReFirmLabs/binwalk
https://vuldb.com/?ctiid.216876
https://github.com/ReFirmLabs/binwalk/pull/556
https://github.com/ReFirmLabs/binwalk/releases/tag/v2.3.3
https://nvd.nist.gov/vuln/detail/CVE-2021-4287
https://vuldb.com/?id.216876
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CVSS v4
Base Score:
2.3
Attack Vector
NETWORK
Attack Complexity
HIGH
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
PASSIVE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
LOW
Vulnerable System Availability
LOW
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
5
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
LOW
Integrity
LOW
Availability
LOW
Weakness Type (CWE)
Improper Link Resolution Before File Access ('Link Following')
CWE-59
UNIX Symbolic Link (Symlink) Following
CWE-61
EPSS
Base Score:
1.71