CVE-2023-22490 (GCVE-0-2023-22490)

Vulnerability from cvelistv5 – Published: 2023-02-14 19:47 – Updated: 2025-02-13 16:43
VLAI
Title
Git vulnerable to local clone-based data exfiltration with non-local transports
Summary
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.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
CWE
  • CWE-59 - Improper Link Resolution Before File Access ('Link Following')
Assigner
References
Impacted products
Vendor Product Version
git git Affected: >= 2.39.0, < 2.39.2
Affected: >= 2.38.0, < 2.38.4
Affected: >= 2.37.0, < 2.37.6
Affected: >= 2.36.0, < 2.36.5
Affected: >= 2.35.0, < 2.35.7
Affected: >= 2.34.0, < 2.34.7
Affected: >= 2.33.0, < 2.33.7
Affected: >= 2.32.0, < 2.32.6
Affected: >= 2.31.0, < 2.31.7
Affected: < 2.30.8
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{
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      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T10:13:48.515Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
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            "name": "https://github.com/git/git/security/advisories/GHSA-gw92-x3fm-3g3q",
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
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            "url": "https://github.com/git/git/security/advisories/GHSA-gw92-x3fm-3g3q"
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            "url": "https://security.gentoo.org/glsa/202312-15"
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        "title": "CVE Program Container"
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    "cna": {
      "affected": [
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          "vendor": "git",
          "versions": [
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        "discovery": "UNKNOWN"
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    "dateReserved": "2022-12-29T17:41:28.089Z",
    "dateUpdated": "2025-02-13T16:43:53.248Z",
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  }
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.