CVE-2023-49569 Maliciously crafted Git server replies can lead to path traversal and RCE on go-git clients

2024-01-1210:41:00

CWE-22

Bitdefender

www.cve.org

cve-2023-49569

maliciously crafted git server

path traversal

rce

chrootos

boundos

in-memory filesystems

go-git implementation

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

9.8 High

AI Score

Confidence

High

0.002 Low

EPSS

Percentile

61.4%

JSON

A path traversal vulnerability was discovered in go-git versions prior to v5.11. This vulnerability allows an attacker to create and amend files across the filesystem. In the worse case scenario, remote code execution could be achieved.

Applications are only affected if they are using the ChrootOS https://pkg.go.dev/github.com/go-git/go-billy/v5/osfs#ChrootOS , which is the default when using “Plain” versions of Open and Clone funcs (e.g. PlainClone). Applications using BoundOS https://pkg.go.dev/github.com/go-git/go-billy/v5/osfs#BoundOS or in-memory filesystems are not affected by this issue.
This is a go-git implementation issue and does not affect the upstream git cli.

CNA Affected

[
  {
    "defaultStatus": "unaffected",
    "product": "go-git",
    "vendor": "go-git",
    "versions": [
      {
        "status": "affected",
        "version": "5.11.0"
      }
    ]
  }
]