7.3
HIGH
CVE-2024-29069
Snapd Path Traversal Vulnerability
Description

In snapd versions prior to 2.62, snapd failed to properly check the destination of symbolic links when extracting a snap. The snap format is a squashfs file-system image and so can contain symbolic links and other file types. Various file entries within the snap squashfs image (such as icons and desktop files etc) are directly read by snapd when it is extracted. An attacker who could convince a user to install a malicious snap which contained symbolic links at these paths could then cause snapd to write out the contents of the symbolic link destination into a world-readable directory. This in-turn could allow an unprivileged user to gain access to privileged information.

INFO

Published Date :

July 25, 2024, 8:15 p.m.

Last Modified :

Nov. 21, 2024, 9:07 a.m.

Remotely Exploitable :

No

Impact Score :

5.9

Exploitability Score :

1.3
Affected Products

The following products are affected by CVE-2024-29069 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Canonical snapd
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2024-29069.

URL Resource
https://github.com/snapcore/snapd/pull/13682 Issue Tracking Patch
https://github.com/snapcore/snapd/pull/13682 Issue Tracking Patch

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2024-29069 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2024-29069 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://github.com/snapcore/snapd/pull/13682
  • Initial Analysis by [email protected]

    Aug. 26, 2024

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
    Changed Reference Type https://github.com/snapcore/snapd/pull/13682 No Types Assigned https://github.com/snapcore/snapd/pull/13682 Issue Tracking, Patch
    Added CWE NIST CWE-59
    Added CPE Configuration OR *cpe:2.3:a:canonical:snapd:*:*:*:*:*:*:*:* versions up to (excluding) 2.62
  • CVE Received by [email protected]

    Jul. 25, 2024

    Action Type Old Value New Value
    Added Description In snapd versions prior to 2.62, snapd failed to properly check the destination of symbolic links when extracting a snap. The snap format is a squashfs file-system image and so can contain symbolic links and other file types. Various file entries within the snap squashfs image (such as icons and desktop files etc) are directly read by snapd when it is extracted. An attacker who could convince a user to install a malicious snap which contained symbolic links at these paths could then cause snapd to write out the contents of the symbolic link destination into a world-readable directory. This in-turn could allow an unprivileged user to gain access to privileged information.
    Added Reference Canonical Ltd. https://github.com/snapcore/snapd/pull/13682 [No types assigned]
    Added CWE Canonical Ltd. CWE-610
    Added CVSS V3.1 Canonical Ltd. AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2024-29069 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability