CVE-2021-23521

Link Following

Medium · published January 31, 2022

CVSS v3.1
5.5
EPSS
1%
Percentile
44.9
In the wild
Unconfirmed
What it is

This affects the package juce-framework/JUCE before 6.1.5. This vulnerability is triggered when a malicious archive is crafted with an entry containing a symbolic link. When extracted, the symbolic link is followed outside of the target dir allowing writing arbitrary files on the target host. In some cases, this can allow an attacker to execute arbitrary code. The vulnerable code is in the ZipFile::uncompressEntry function in juce_ZipFile.cpp and is executed when the archive is extracted upon calling uncompressTo() on a ZipFile object.

The record
Technical detail
CVSS v3.1
5.5 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00544 · 44.9th percentile
Published
2022-01-31T10:50Z
EPSS history
Timeline
  • 31 JAN 10:50Z
    Link Following
    cvelistv5