CVE-2022-1537

Publication date 10 May 2022

Last updated 30 May 2025

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

7.8 · High

Score breakdown

file.copy operations in GruntJS are vulnerable to a TOCTOU race condition leading to arbitrary file write in GitHub repository gruntjs/grunt prior to 1.5.3. This vulnerability is capable of arbitrary file writes which can lead to local privilege escalation to the GruntJS user if a lower-privileged user has write access to both source and destination directories as the lower-privileged user can create a symlink to the GruntJS user’s .bashrc file or replace /etc/shadow file if the GruntJS user is root.

Read the notes from the security team

Status

Package Ubuntu Release Status
grunt 25.04 plucky
Not affected
24.10 oracular
Not affected
24.04 LTS noble
Not affected
23.10 mantic
Not affected
23.04 lunar
Not affected
22.10 kinetic
Not affected
22.04 LTS jammy
21.10 impish Ignored end of life
20.04 LTS focal
18.04 LTS bionic
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release

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Notes

ccdm94

this CVE seems to be closely related to CVE-2022-0436, with its fix editing code which was included in the patch to CVE-2022-0436 as well. In the bug bounty report to this CVE, the researcher mentions that the possibility of this vulnerability existing had already been considered in the CVE-2022-0436 bug bounty report, however, a fix for this was not applied together with the fix for CVE-2022-0436, and therefore, a new report was made.

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
grunt

Severity score breakdown

Parameter Value
Base score 7.8 · High
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H