CVE-2020-26312 – github.com/dotmesh-io/dotmesh

Package

Manager: go
Name: github.com/dotmesh-io/dotmesh
Vulnerable Version: >=0 <=0.8.1

Severity

Level: High

CVSS v3.1: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

EPSS: 0.00205 pctl0.42773

Details

dotmesh arbitrary file read and/or write Dotmesh is a git-like command-line interface for capturing, organizing and sharing application states. In versions 0.8.1 and prior, 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. The routine `untarFile` attempts to guard against creating symbolic links that point outside the directory a tar archive is extracted to. However, a malicious tarball first linking `subdir/parent` to `..` (allowed, because `subdir/..` falls within the archive root) and then linking `subdir/parent/escapes` to `..` results in a symbolic link pointing to the tarball’s parent directory, contrary to the routine’s goals. 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, they may be able to read arbitrary system files the parent process has permissions to read. As of time of publication, no patch for this issue is available.

Metadata

Created: 2024-05-14T21:34:44Z
Modified: 2024-05-14T22:32:03Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2024/05/GHSA-hf54-fq2m-p9v6/GHSA-hf54-fq2m-p9v6.json
CWE IDs: ["CWE-125"]
Alternative ID: GHSA-hf54-fq2m-p9v6
Finding: F063
Auto approve: 1