CVE-2022-41920 Zip slip in Lancet
Attackers can exploit a Zip Slip vulnerability in the Lancet Go library to write files outside the intended directory, potentially leading to code execution or data modification.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2022-41920?
CVE-2022-41920 is a medium-severity path traversal vulnerability in duke-git lancet, published on 17 Nov 2022. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Lancet is a general utility library for the go programming language. Affected versions are subject to a ZipSlip issue when using the fileutil package to unzip files. This issue has been addressed and a fix will be included in versions 2.1.10 and 1.3.4. Users are advised to upgrade. There are no known workarounds for this issue.
Weakness: CWE-22
Which versions are affected by CVE-2022-41920?
6 open source packages ship an affected version, including github.com/duke-git/lancet and github.com/duke-git/lancet/v2. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
github.com/duke-git/lancet Go | All versions | 1.3.4 |
github.com/duke-git/lancet Go | All versions | 1.3.4 |
github.com/duke-git/lancet Go | All versions | 1.3.4 |
github.com/duke-git/lancet/v2 Go | From 2.0.0 | 2.1.10 |
github.com/duke-git/lancet/v2 Go | From 2.0.0 | 2.1.10 |
github.com/duke-git/lancet/v2 Go | From 2.0.0 | 2.1.10 |
Products include Lancet Project Lancet.
How do I fix CVE-2022-41920?
Upgrade github.com/duke-git/lancet to 1.3.4 or later.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2022-41920 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-41920 exists.
Sources
Also known as GHSA-pp3f-xrw5-q5j4, GO-2022-1114.