Vulnerability-Lookup

GHSA-PFJR-8V62-GMM9

Vulnerability from github – Published: 2026-01-14 00:31 – Updated: 2026-01-14 00:31

Details

Covenant 0.1.3 - 0.5 contains a remote code execution vulnerability that allows attackers to craft malicious JWT tokens with administrative privileges. Attackers can generate forged tokens with admin roles and upload custom DLL payloads to execute arbitrary commands on the target system.

Severity

9.8 (Critical)


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

9.3 (Critical)


                  
                    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2020-36911"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-798"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-01-13T23:15:48Z",
    "severity": "CRITICAL"
  },
  "details": "Covenant 0.1.3 - 0.5 contains a remote code execution vulnerability that allows attackers to craft malicious JWT tokens with administrative privileges. Attackers can generate forged tokens with admin roles and upload custom DLL payloads to execute arbitrary commands on the target system.",
  "id": "GHSA-pfjr-8v62-gmm9",
  "modified": "2026-01-14T00:31:26Z",
  "published": "2026-01-14T00:31:26Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-36911"
    },
    {
      "type": "WEB",
      "url": "https://cobbr.io/Covenant.html"
    },
    {
      "type": "WEB",
      "url": "https://github.com/Zeop-CyberSec/covenant_rce/blob/master/covenant_jwt_rce.rb"
    },
    {
      "type": "WEB",
      "url": "https://github.com/cobbr/Covenant"
    },
    {
      "type": "WEB",
      "url": "https://web.archive.org/web/20201013165001/https://twitter.com/cobbr_io/status/1316058367161401344"
    },
    {
      "type": "WEB",
      "url": "https://web.archive.org/web/20201101052547/https://blog.null.farm/hunting-the-hunters"
    },
    {
      "type": "WEB",
      "url": "https://www.exploit-db.com/exploits/51141"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/covenant-remote-code-execution-rce"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

CVE-2020-36911 (GCVE-0-2020-36911)

Vulnerability from cvelistv5 – Published: 2026-01-13 22:51 – Updated: 2026-05-14 02:06

Title

Covenant 0.5 - Remote Code Execution (RCE)

Summary

Severity

9.3 (Critical)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

9.8 (Critical)


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

SSVC

Exploitation: poc Automatable: yes Technical Impact: total

CISA Coordinator (v2.0.3)

CWE

CWE-798 - Use of Hard-coded Credentials

Assigner

VulnCheck

References

7 references

URL	Tags
https://www.exploit-db.com/exploits/51141	exploit
https://cobbr.io/Covenant.html	product
https://github.com/cobbr/Covenant	product
https://web.archive.org/web/20201101052547/https:…	technical-descriptionexploit
https://github.com/Zeop-CyberSec/covenant_rce/blo…	exploit
https://web.archive.org/web/20201013165001/https:…	vendor-advisorypatch
https://www.vulncheck.com/advisories/covenant-rem…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
Cobbr	Covenant	Affected: 0.1.3 , ≤ 0.5 (custom)

Date Public

2022-09-11 00:00

Credits

coastal

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2020-36911",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-01-14T15:55:27.044236Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-01-14T19:22:04.508Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "exploit"
            ],
            "url": "https://github.com/Zeop-CyberSec/covenant_rce/blob/master/covenant_jwt_rce.rb"
          },
          {
            "tags": [
              "exploit"
            ],
            "url": "https://web.archive.org/web/20201101052547/https://blog.null.farm/hunting-the-hunters"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Covenant",
          "vendor": "Cobbr",
          "versions": [
            {
              "lessThanOrEqual": "0.5",
              "status": "affected",
              "version": "0.1.3",
              "versionType": "custom"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:cobbr:covenant:*:*:*:*:*:*:*:*",
                  "versionEndIncluding": "0.5",
                  "versionStartIncluding": "0.1.3",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "coastal"
        }
      ],
      "datePublic": "2022-09-11T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "Covenant 0.1.3 - 0.5 contains a remote code execution vulnerability that allows attackers to craft malicious JWT tokens with administrative privileges. Attackers can generate forged tokens with admin roles and upload custom DLL payloads to execute arbitrary commands on the target system."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 9.3,
            "baseSeverity": "CRITICAL",
            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "NONE",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "HIGH",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "format": "CVSS"
        },
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "format": "CVSS"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-798",
              "description": "Use of Hard-coded Credentials",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-14T02:06:38.510Z",
        "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "shortName": "VulnCheck"
      },
      "references": [
        {
          "name": "ExploitDB-51141",
          "tags": [
            "exploit"
          ],
          "url": "https://www.exploit-db.com/exploits/51141"
        },
        {
          "name": "Vendor Homepage",
          "tags": [
            "product"
          ],
          "url": "https://cobbr.io/Covenant.html"
        },
        {
          "name": "Covenant GitHub Repository",
          "tags": [
            "product"
          ],
          "url": "https://github.com/cobbr/Covenant"
        },
        {
          "name": "Archived Researcher Blog",
          "tags": [
            "technical-description",
            "exploit"
          ],
          "url": "https://web.archive.org/web/20201101052547/https://blog.null.farm/hunting-the-hunters"
        },
        {
          "name": "Exploit Repository",
          "tags": [
            "exploit"
          ],
          "url": "https://github.com/Zeop-CyberSec/covenant_rce/blob/master/covenant_jwt_rce.rb"
        },
        {
          "name": "Archived Maintainer Patch Announcement",
          "tags": [
            "vendor-advisory",
            "patch"
          ],
          "url": "https://web.archive.org/web/20201013165001/https://twitter.com/cobbr_io/status/1316058367161401344"
        },
        {
          "name": "VulnCheck Advisory: Covenant 0.5 - Remote Code Execution (RCE)",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://www.vulncheck.com/advisories/covenant-remote-code-execution-rce"
        }
      ],
      "title": "Covenant 0.5 - Remote Code Execution (RCE)",
      "x_generator": {
        "engine": "vulncheck"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
    "assignerShortName": "VulnCheck",
    "cveId": "CVE-2020-36911",
    "datePublished": "2026-01-13T22:51:37.380Z",
    "dateReserved": "2026-01-03T14:10:13.300Z",
    "dateUpdated": "2026-05-14T02:06:38.510Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

Action not permitted

GHSA-PFJR-8V62-GMM9

CVE-2020-36911 (GCVE-0-2020-36911)

Tags

Sightings

Nomenclature