Vulnerability-Lookup

CVE-2023-4759 (GCVE-0-2023-4759)

Vulnerability from cvelistv5 – Published: 2023-09-12 09:12 – Updated: 2024-08-02 07:37

Title

Improper handling of case insensitive filesystems in Eclipse JGit allows arbitrary file write

Summary

Arbitrary File Overwrite in Eclipse JGit <= 6.6.0 In Eclipse JGit, all versions <= 6.6.0.202305301015-r, a symbolic link present in a specially crafted git repository can be used to write a file to locations outside the working tree when this repository is cloned with JGit to a case-insensitive filesystem, or when a checkout from a clone of such a repository is performed on a case-insensitive filesystem. This can happen on checkout (DirCacheCheckout), merge (ResolveMerger via its WorkingTreeUpdater), pull (PullCommand using merge), and when applying a patch (PatchApplier). This can be exploited for remote code execution (RCE), for instance if the file written outside the working tree is a git filter that gets executed on a subsequent git command. The issue occurs only on case-insensitive filesystems, like the default filesystems on Windows and macOS. The user performing the clone or checkout must have the rights to create symbolic links for the problem to occur, and symbolic links must be enabled in the git configuration. Setting git configuration option core.symlinks = false before checking out avoids the problem. The issue was fixed in Eclipse JGit version 6.6.1.202309021850-r and 6.7.0.202309050840-r, available via Maven Central https://repo1.maven.org/maven2/org/eclipse/jgit/ and repo.eclipse.org https://repo.eclipse.org/content/repositories/jgit-releases/ . A backport is available in 5.13.3 starting from 5.13.3.202401111512-r. The JGit maintainers would like to thank RyotaK for finding and reporting this issue.

Severity

8.8 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-07-19 03:55 UTC

CWE

CWE-59 - Improper Link Resolution Before File Access ('Link Following')
CWE-178 - Improper Handling of Case Sensitivity

Assigner

eclipse mitre root

References

3 references

URL	Tags
https://gitlab.eclipse.org/security/vulnerability…
https://projects.eclipse.org/projects/technology.…
https://git.eclipse.org/c/jgit/jgit.git/commit/?i…

Impacted products

3 products

Vendor	Product	Version	CPE status
Eclipse Foundation	Eclipse JGit	Affected: 0.0.0 , ≤ 6.6.0.202305301015-r (semver) Unaffected: 5.13.3.202401111512-r	guessed
eclipse	jgit	Affected: 0 , ≤ 6.6.0.202305301015-r (semver) cpe:2.3:a:eclipse:jgit::::::::
eclipse	jgit	Unaffected: 5.13.3.202401111512-r cpe:2.3:a:eclipse:jgit:5.13.3.202401111512-r:::::::*

Date Public

2023-09-12 10:00

Credits

RyotaK

Show details on NVD website

JSON

To clipboard

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OESA-2023-1995 (CVE-2023-4759)

Vulnerability from osv_openeuler – Published: 2023-12-29 11:06 – Updated: 2026-08-06 11:06 – Source website

Summary

jgit security update

Details

A pure Java implementation of the Git version control system and command line interface.

Security Fix(es):

Arbitrary File Overwrite in Eclipse JGit <= 6.6.0

In Eclipse JGit, all versions <= 6.6.0.202305301015-r, a symbolic link present in a specially crafted git repository can be used to write a file to locations outside the working tree when this repository is cloned with JGit to a case-insensitive filesystem, or when a checkout from a clone of such a repository is performed on a case-insensitive filesystem.

This can happen on checkout (DirCacheCheckout), merge (ResolveMerger via its WorkingTreeUpdater), pull (PullCommand using merge), and when applying a patch (PatchApplier). This can be exploited for remote code execution (RCE), for instance if the file written outside the working tree is a git filter that gets executed on a subsequent git command.

The issue occurs only on case-insensitive filesystems, like the default filesystems on Windows and macOS. The user performing the clone or checkout must have the rights to create symbolic links for the problem to occur, and symbolic links must be enabled in the git configuration.

Setting git configuration option core.symlinks = false before checking out avoids the problem.

The issue was fixed in Eclipse JGit version 6.6.1.202309021850-r and 6.7.0.202309050840-r, available via Maven Central https://repo1.maven.org/maven2/org/eclipse/jgit/ and repo.eclipse.org https://repo.eclipse.org/content/repositories/jgit-releases/ .

The JGit maintainers would like to thank RyotaK for finding and reporting this issue.

(CVE-2023-4759)

Severity

8.8 (High)


                    
                      CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References

URL

Type

	https://www.openeuler.org/en/security/safety-bull…	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2023-4759	ADVISORY

JSON

To clipboard

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  "affected": [
    {
      "ecosystem_specific": {
        "noarch": [
          "jgit-javadoc-5.11.0-3.oe1.noarch.rpm",
          "jgit-5.11.0-3.oe1.noarch.rpm"
        ],
        "src": [
          "jgit-5.11.0-3.oe1.src.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:20.03-LTS-SP1",
        "name": "jgit",
        "purl": "pkg:rpm/openEuler/jgit\u0026distro=openEuler-20.03-LTS-SP1"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.11.0-3.oe1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "noarch": [
          "jgit-javadoc-5.11.0-3.oe1.noarch.rpm",
          "jgit-5.11.0-3.oe1.noarch.rpm"
        ],
        "src": [
          "jgit-5.11.0-3.oe1.src.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:20.03-LTS-SP3",
        "name": "jgit",
        "purl": "pkg:rpm/openEuler/jgit\u0026distro=openEuler-20.03-LTS-SP3"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.11.0-3.oe1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "noarch": [
          "jgit-javadoc-5.11.0-3.oe2003sp4.noarch.rpm",
          "jgit-5.11.0-3.oe2003sp4.noarch.rpm"
        ],
        "src": [
          "jgit-5.11.0-3.oe2003sp4.src.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:20.03-LTS-SP4",
        "name": "jgit",
        "purl": "pkg:rpm/openEuler/jgit\u0026distro=openEuler-20.03-LTS-SP4"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.11.0-3.oe2003sp4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "noarch": [
          "jgit-javadoc-5.11.0-3.oe2203.noarch.rpm",
          "jgit-5.11.0-3.oe2203.noarch.rpm",
          "jgit-javadoc-5.11.0-3.oe2203sp1.noarch.rpm",
          "jgit-5.11.0-3.oe2203sp1.noarch.rpm",
          "jgit-javadoc-5.11.0-3.oe2203sp2.noarch.rpm",
          "jgit-5.11.0-3.oe2203sp2.noarch.rpm"
        ],
        "src": [
          "jgit-5.11.0-3.oe2203.src.rpm",
          "jgit-5.11.0-3.oe2203sp1.src.rpm",
          "jgit-5.11.0-3.oe2203sp2.src.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:22.03-LTS",
        "name": "jgit",
        "purl": "pkg:rpm/openEuler/jgit\u0026distro=openEuler-22.03-LTS"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.11.0-3.oe2203sp2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "noarch": [
          "jgit-javadoc-5.11.0-3.oe2203sp1.noarch.rpm",
          "jgit-5.11.0-3.oe2203sp1.noarch.rpm"
        ],
        "src": [
          "jgit-5.11.0-3.oe2203sp1.src.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:22.03-LTS-SP1",
        "name": "jgit",
        "purl": "pkg:rpm/openEuler/jgit\u0026distro=openEuler-22.03-LTS-SP1"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.11.0-3.oe2203sp1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "noarch": [
          "jgit-javadoc-5.11.0-3.oe2203sp2.noarch.rpm",
          "jgit-5.11.0-3.oe2203sp2.noarch.rpm"
        ],
        "src": [
          "jgit-5.11.0-3.oe2203sp2.src.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:22.03-LTS-SP2",
        "name": "jgit",
        "purl": "pkg:rpm/openEuler/jgit\u0026distro=openEuler-22.03-LTS-SP2"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.11.0-3.oe2203sp2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "severity": "High"
  },
  "details": "A pure Java implementation of the Git version control system and command line interface.\r\n\r\nSecurity Fix(es):\r\n\r\nArbitrary File Overwrite in Eclipse JGit \u0026lt;= 6.6.0\r\n\r\nIn Eclipse JGit, all versions \u0026lt;= 6.6.0.202305301015-r, a symbolic link present in a specially crafted git repository can be used to write a file to locations outside the working tree when this repository is cloned with JGit to a case-insensitive filesystem, or when a checkout from a clone of such a repository is performed on a case-insensitive filesystem.\r\n\r\nThis can happen on checkout (DirCacheCheckout), merge (ResolveMerger\u00a0via its WorkingTreeUpdater), pull (PullCommand\u00a0using merge), and when applying a patch (PatchApplier). This can be exploited for remote code execution (RCE), for instance if the file written outside the working tree is a git filter that gets executed on a subsequent git command.\r\n\r\nThe issue occurs only on case-insensitive filesystems, like the default filesystems on Windows and macOS. The user performing the clone or checkout must have the rights to create symbolic links for the problem to occur, and symbolic links must be enabled in the git configuration.\r\n\r\nSetting git configuration option core.symlinks = false\u00a0before checking out avoids the problem.\r\n\r\nThe issue was fixed in Eclipse JGit version 6.6.1.202309021850-r and 6.7.0.202309050840-r, available via  Maven Central https://repo1.maven.org/maven2/org/eclipse/jgit/ \u00a0and  repo.eclipse.org https://repo.eclipse.org/content/repositories/jgit-releases/ .\r\n\r\n\nThe JGit maintainers would like to thank RyotaK for finding and reporting this issue.\r\n\r\n\r\n\r\n(CVE-2023-4759)",
  "id": "OESA-2023-1995",
  "modified": "2026-08-06T11:06:26Z",
  "published": "2023-12-29T11:06:26Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2023-1995"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-4759"
    }
  ],
  "schema_version": "1.7.2",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "jgit security update",
  "upstream": [
    "CVE-2023-4759"
  ]
}

OPENSUSE-SU-2024:13312-1

Vulnerability from csaf_opensuse - Published: 2024-06-15 00:00 - Updated: 2024-06-15 00:00

Summary

eclipse-jgit-5.11.0-9.1 on GA media

Severity

Moderate

Scope

1 vulnerability in this advisory, including CVE-2023-4759.

CVE-2023-4759

7.5 (High)


                
                  CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Recommended: 4 products

Open the full advisory

OPENSUSE-SU-2025:15232-1

Vulnerability from csaf_opensuse - Published: 2025-07-03 00:00 - Updated: 2025-07-03 00:00

Summary

jgit-5.11.0-2.1 on GA media

Severity

Moderate

Scope

2 vulnerabilities in this advisory, including CVE-2023-4759.

CVE-2023-4759

7.5 (High)


                
                  CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Recommended: 8 products

Open the full advisory

RHSA-2024:0710

Vulnerability from csaf_redhat - Published: 2024-02-07 08:37 - Updated: 2026-04-30 12:59

Summary

Red Hat Security Advisory: Red Hat JBoss Enterprise Application Platform 7.4.15 Security update

Severity

Moderate

Scope

2 vulnerabilities in this advisory, including CVE-2023-4759.

CVE-2023-4759

Fixed: 4 products Known not affected: 68 products

https://access.redhat.com/errata/RHSA-2024:0710

Open the full advisory

RHSA-2024:0711

Vulnerability from csaf_redhat - Published: 2024-02-07 08:38 - Updated: 2026-04-30 12:59

Summary

Red Hat Security Advisory: Red Hat JBoss Enterprise Application Platform 7.4.15 Security update

Severity

Moderate

Scope

2 vulnerabilities in this advisory, including CVE-2023-4759.

CVE-2023-4759

Fixed: 2 products Known not affected: 70 products

https://access.redhat.com/errata/RHSA-2024:0711

Open the full advisory

RHSA-2024:0712

Vulnerability from csaf_redhat - Published: 2024-02-07 08:37 - Updated: 2026-04-30 12:59

Summary

Red Hat Security Advisory: Red Hat JBoss Enterprise Application Platform 7.4.15 security update

Severity

Moderate

Scope

2 vulnerabilities in this advisory, including CVE-2023-4759.

CVE-2023-4759

Fixed: 7 products Known not affected: 63 products

https://access.redhat.com/errata/RHSA-2024:0712

Open the full advisory

RHSA-2024:0714

Vulnerability from csaf_redhat - Published: 2024-02-06 19:55 - Updated: 2026-04-30 12:59

Summary

Red Hat Security Advisory: Red Hat JBoss Enterprise Application Platform 7.4.15 Security update

Severity

Moderate

Scope

2 vulnerabilities in this advisory, including CVE-2023-4759.

CVE-2023-4759

Fixed: 1 product Known not affected: 2193 products

https://access.redhat.com/errata/RHSA-2024:0714

Open the full advisory

RHSA-2024:1192

Vulnerability from csaf_redhat - Published: 2024-03-06 15:32 - Updated: 2026-09-19 11:44

Summary

Red Hat Security Advisory: Red Hat JBoss Enterprise Application Platform 8.0.1 security update

Severity

Moderate

Scope

4 vulnerabilities in this advisory, including CVE-2023-4759.

CVE-2023-4759

Fixed: 21 products

https://access.redhat.com/errata/RHSA-2024:1192

Open the full advisory

RHSA-2024:1193

Vulnerability from csaf_redhat - Published: 2024-03-06 15:32 - Updated: 2026-09-19 11:44

Summary

Red Hat Security Advisory: Red Hat JBoss Enterprise Application Platform 8.0.1 security update

Severity

Moderate

Scope

4 vulnerabilities in this advisory, including CVE-2023-4759.

CVE-2023-4759

Fixed: 21 products

https://access.redhat.com/errata/RHSA-2024:1193

Open the full advisory

RHSA-2024:1194

Vulnerability from csaf_redhat - Published: 2024-03-06 15:38 - Updated: 2026-09-19 11:44

Summary

Red Hat Security Advisory: Red Hat JBoss Enterprise Application Platform 8.0.1 security update

Severity

Moderate

Scope

6 vulnerabilities in this advisory, including CVE-2023-4759.

CVE-2023-4759

Fixed: 1 product

https://access.redhat.com/errata/RHSA-2024:1194

Open the full advisory

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2023-4759 (GCVE-0-2023-4759)

OESA-2023-1995 (CVE-2023-4759)

Tags

Sightings

Nomenclature

Related by attack behaviour