// For flags

CVE-2023-22490

Git vulnerable to local clone-based data exfiltration with non-local transports

Severity Score

5.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

Git is a revision control system. Using a specially-crafted repository, Git prior to versions 2.39.2, 2.38.4, 2.37.6, 2.36.5, 2.35.7, 2.34.7, 2.33.7, 2.32.6, 2.31.7, and 2.30.8 can be tricked into using its local clone optimization even when using a non-local transport. Though Git will abort local clones whose source `$GIT_DIR/objects` directory contains symbolic links, the `objects` directory itself may still be a symbolic link. These two may be combined to include arbitrary files based on known paths on the victim's filesystem within the malicious repository's working copy, allowing for data exfiltration in a similar manner as CVE-2022-39253.

A fix has been prepared and will appear in v2.39.2 v2.38.4 v2.37.6 v2.36.5 v2.35.7 v2.34.7 v2.33.7 v2.32.6, v2.31.7 and v2.30.8. If upgrading is impractical, two short-term workarounds are available. Avoid cloning repositories from untrusted sources with `--recurse-submodules`. Instead, consider cloning repositories without recursively cloning their submodules, and instead run `git submodule update` at each layer. Before doing so, inspect each new `.gitmodules` file to ensure that it does not contain suspicious module URLs.

A vulnerability was found in Git. Using a specially-crafted repository, Git can be tricked into using its local clone optimization even when using a non-local transport. Though Git will abort local clones whose source $GIT_DIR/objects directory contains symbolic links (CVE-2022-39253), the objects directory may still be a symbolic link.

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2022-12-29 CVE Reserved
  • 2023-02-14 CVE Published
  • 2024-07-27 EPSS Updated
  • 2024-08-02 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-59: Improper Link Resolution Before File Access ('Link Following')
  • CWE-402: Transmission of Private Resources into a New Sphere ('Resource Leak')
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Git-scm
Search vendor "Git-scm"
 Git
Search vendor "Git-scm" for product "Git"
 < 2.30.8
Search vendor "Git-scm" for product "Git" and version " < 2.30.8"
-
Affected
Git-scm
Search vendor "Git-scm"
 Git
Search vendor "Git-scm" for product "Git"
 >= 2.31.0 < 2.31.7
Search vendor "Git-scm" for product "Git" and version " >= 2.31.0 < 2.31.7"
-
Affected
Git-scm
Search vendor "Git-scm"
 Git
Search vendor "Git-scm" for product "Git"
 >= 2.32.0 < 2.32.6
Search vendor "Git-scm" for product "Git" and version " >= 2.32.0 < 2.32.6"
-
Affected
Git-scm
Search vendor "Git-scm"
 Git
Search vendor "Git-scm" for product "Git"
 >= 2.33.0 < 2.33.7
Search vendor "Git-scm" for product "Git" and version " >= 2.33.0 < 2.33.7"
-
Affected
Git-scm
Search vendor "Git-scm"
 Git
Search vendor "Git-scm" for product "Git"
 >= 2.34.0 < 2.34.7
Search vendor "Git-scm" for product "Git" and version " >= 2.34.0 < 2.34.7"
-
Affected
Git-scm
Search vendor "Git-scm"
 Git
Search vendor "Git-scm" for product "Git"
 >= 2.35.0 < 2.35.7
Search vendor "Git-scm" for product "Git" and version " >= 2.35.0 < 2.35.7"
-
Affected
Git-scm
Search vendor "Git-scm"
 Git
Search vendor "Git-scm" for product "Git"
 >= 2.36.0 < 2.36.5
Search vendor "Git-scm" for product "Git" and version " >= 2.36.0 < 2.36.5"
-
Affected
Git-scm
Search vendor "Git-scm"
 Git
Search vendor "Git-scm" for product "Git"
 >= 2.37.0 < 2.37.6
Search vendor "Git-scm" for product "Git" and version " >= 2.37.0 < 2.37.6"
-
Affected
Git-scm
Search vendor "Git-scm"
 Git
Search vendor "Git-scm" for product "Git"
 >= 2.38.0 < 2.38.4
Search vendor "Git-scm" for product "Git" and version " >= 2.38.0 < 2.38.4"
-
Affected
Git-scm
Search vendor "Git-scm"
 Git
Search vendor "Git-scm" for product "Git"
 >= 2.39.0 < 2.39.2
Search vendor "Git-scm" for product "Git" and version " >= 2.39.0 < 2.39.2"
-
Affected