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CVE-2021-32825

LOW

2.7

Description

bblfshd is an open source self-hosted server for source code parsing. In bblfshd before commit 4265465b9b6fb5663c30ee43806126012066aad4 there is a "zipslip" vulnerability. The unsafe handling of symbolic links in an unpacking routine may enable attackers to read and/or write to arbitrary locations outside the designated target folder. This issue may lead to arbitrary file write (with same permissions as the program running the unpack operation) if the attacker can control the archive file. Additionally, if the attacker has read access to the unpacked files, he may be able to read arbitrary system files the parent process has permissions to read. For more details including a PoC see the referenced GHSL-2020-258.

CVE Details

CVSS v3.1 Score2.7

SeverityLOW

CVSS VectorCVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:C/C:L/I:N/A:N

Attack VectorLOCAL

ComplexityHIGH

Privileges RequiredNONE

User InteractionREQUIRED

Published8/16/2021

Last Modified11/21/2024

Sourcenvd

Honeypot Sightings0

Affected Products

bblfshd_project:bblfshd

Weaknesses (CWE)

CWE-23CWE-59

References

https://github.com/bblfsh/bblfshd/commit/4265465b9b6fb5663c30ee43806126012066aad4(security-advisories@github.com)

https://github.com/bblfsh/bblfshd/pull/341(security-advisories@github.com)

https://securitylab.github.com/advisories/GHSL-2020-258-zipslip-bblfshd/(security-advisories@github.com)

https://github.com/bblfsh/bblfshd/commit/4265465b9b6fb5663c30ee43806126012066aad4(af854a3a-2127-422b-91ae-364da2661108)

https://github.com/bblfsh/bblfshd/pull/341(af854a3a-2127-422b-91ae-364da2661108)

https://securitylab.github.com/advisories/GHSL-2020-258-zipslip-bblfshd/(af854a3a-2127-422b-91ae-364da2661108)

IOC Correlations

No correlations recorded

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