CVE-2023-22726

2023-01-2022:15:10

CWE-434

CWE-22

[email protected]

web.nvd.nist.gov

act

project

github action

artifact server

path traversal

remote code execution

privilege escalation

vulnerability

cve-2023-22726

nvd

8.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

8.5 High

AI Score

Confidence

High

0.003 Low

EPSS

Percentile

69.4%

JSON

act is a project which allows for local running of github actions. The artifact server that stores artifacts from Github Action runs does not sanitize path inputs. This allows an attacker to download and overwrite arbitrary files on the host from a Github Action. This issue may lead to privilege escalation. The /upload endpoint is vulnerable to path traversal as filepath is user controlled, and ultimately flows into os.Mkdir and os.Open. The /artifact endpoint is vulnerable to path traversal as the path is variable is user controlled, and the specified file is ultimately returned by the server. This has been addressed in version 0.2.40. Users are advised to upgrade. Users unable to upgrade may, during implementation of Open and OpenAtEnd for FS, ensure to use ValidPath() to check against path traversal or clean the user-provided paths manually.

Affected configurations

Vulners

NVD

Node

nektosactRange<0.2.40

CPENameOperatorVersion
act_project:actact project actlt0.2.40

CPE	Name	Operator	Version
act_project:act	act project act	lt	0.2.40

CNA Affected

[
  {
    "vendor": "nektos",
    "product": "act",
    "versions": [
      {
        "version": "< 0.2.40",
        "status": "affected"
      }
    ]
  }
]