CVE-2024-8260: Github.com/open policy agent/opa Remote Code Execution Vulnerability

MODERATE
Advisory Identifier: GHSA-c77r-fh37-x2px
Share
CVSS 6.1
CWE-294
Published
Advisory Summary

CVE-2024-8260 is a MODERATE (CVSS 6.1) remote code execution vulnerability (CWE-294: Authentication Bypass by Capture-replay) affecting Github.com/open policy agent/opa libraries in the Go ecosystem. The issue involves opa for windows has an smb force-authentication vulnerability. Remediation is available by upgrading affected packages to version 0.68.0.

CVE-2024-8260 at a Glance

CVE Identifier CVE-2024-8260
GHSA Identifier GHSA-c77r-fh37-x2px
Severity MODERATE
CVSS v3.1 Base Score 6.1
CWE Classification CWE-294: Authentication Bypass by Capture-replay
Affected Product Github.com/open policy agent/opa
Package Ecosystem Go
Published Date
Last Updated

Security Impact

CVSS: 6.1

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:L).

Attack Vector Local (AV:L)
Attack Complexity Low (AC:L)
Privileges Required Low (PR:L)
User Interaction Required (UI:R)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity Low (I:L)
Availability Low (A:L)

How to Fix CVE-2024-8260

To remediate this vulnerability, upgrade all affected Github.com/open policy agent/opa dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

github.com/open-policy-agent/opa fixed: 0.68.0 
Upgrade github.com/open-policy-agent/opa to 0.68.0
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for github.com/open-policy-agent/opa

How to Check if You Are Affected

To determine whether your application is affected by CVE-2024-8260, inspect your project dependencies for Github.com/open policy agent/opa:

inspect dependencies for github.com/open-policy-agent/opa

Analyze the terminal output to locate any version of Github.com/open policy agent/opa in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 0.68.0), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-294: Authentication Bypass by Capture-replay, where a capture-replay flaw exists when the design of the product makes it possible for a malicious user to sniff network traffic and bypass authentication by replaying it to the server in question to the same effect as the original message (or with minor changes). In Github.com/open policy agent/opa, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

A SMB force-authentication vulnerability exists in all versions of OPA for Windows prior to v0.68.0. The vulnerability exists because of improper input validation, allowing a user to pass an arbitrary SMB share instead of a Rego file as an argument to OPA CLI or to one of the OPA Go library’s functions.

CVE-2024-8260 Affected Github.com/open policy agent/opa Versions

1 component(s)
Fixed Versions:
0.68.0
Product / Package Ecosystem Affected Versions Fixed Version
github.com/open-policy-agent/opa
golang/github.com/open-policy-agent/opa
Go
< 0.68.0
0.68.0

References

NVD — CVE-2024-8260 NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-8260
Security Fix Commit FIX COMMIT
https://github.com/open-policy-agent/opa/commit/10f4d553e6bb6ae9c69611ecdd9a77dda857070e
Github.com/open policy agent/opa Source Repository REPOSITORY
https://github.com/open-policy-agent/opa
Github.com/open policy agent/opa Release RELEASE
https://github.com/open-policy-agent/opa/releases/tag/v0.68.0
pkg.go.dev/vuln/go-2024-3141 WEB
https://pkg.go.dev/vuln/GO-2024-3141
Github.com/open policy agent/opa Security Information SECURITY
https://www.tenable.com/security/research/tra-2024-36

Frequently Asked Questions

What is CVE-2024-8260?
CVE-2024-8260 is a security vulnerability in Github.com/open policy agent/opa involving OPA for Windows has an SMB force-authentication vulnerability under CWE-294: Authentication Bypass by Capture-replay.
Which Github.com/open policy agent/opa versions are affected?
Affected versions include releases prior to 0.68.0 across affected packages: github.com/open-policy-agent/opa.
What version fixes CVE-2024-8260?
Upgrading to 0.68.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is github.com/open-policy-agent/opa affected?
Yes, github.com/open-policy-agent/opa is affected in releases prior to 0.68.0. Upgrade your dependency to 0.68.0 or later.
What is the CVSS score of CVE-2024-8260?
CVE-2024-8260 has a CVSS v3.1 base score of 6.1 (MODERATE) with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:L.
What CWE is associated with CVE-2024-8260?
CVE-2024-8260 is classified under CWE-294: Authentication Bypass by Capture-replay (A capture-replay flaw exists when the design of the product makes it possible for a malicious user to sniff network traffic and bypass authentication by replaying it to the server in question to the same effect as the original message (or with minor changes).).
How can I check Go dependencies for CVE-2024-8260?
Run the dependency tree command: 'inspect dependencies for github.com/open-policy-agent/opa'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-c77r-fh37-x2px",
  "modified" : "2024-09-20T22:06:08Z",
  "published" : "2024-08-30T15:31:30Z",
  "aliases" : [ "CVE-2024-8260" ],
  "summary" : "OPA for Windows has an SMB force-authentication vulnerability",
  "details" : "A SMB force-authentication vulnerability exists in all versions of OPA for Windows prior to v0.68.0. The vulnerability exists because of improper input validation, allowing a user to pass an arbitrary SMB share instead of a Rego file as an argument to OPA CLI or to one of the OPA Go library’s functions.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:L"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:A/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Go",
      "name" : "github.com/open-policy-agent/opa"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "0.68.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2024-8260"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/open-policy-agent/opa/commit/10f4d553e6bb6ae9c69611ecdd9a77dda857070e"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/open-policy-agent/opa"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/open-policy-agent/opa/releases/tag/v0.68.0"
  }, {
    "type" : "WEB",
    "url" : "https://pkg.go.dev/vuln/GO-2024-3141"
  }, {
    "type" : "WEB",
    "url" : "https://www.tenable.com/security/research/tra-2024-36"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-294" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2024-09-19T19:47:47Z",
    "nvd_published_at" : "2024-08-30T13:15:12Z"
  }
}