github - ghsa-96gf-3rqf-c8m9

GHSA-96GF-3RQF-C8M9

Vulnerability from github – Published: 2025-05-22 00:34 – Updated: 2025-05-22 00:34

Details

The Versa Concerto SD-WAN orchestration platform is vulnerable to an authentication bypass in the Traefik reverse proxy configuration, allowing at attacker to access administrative endpoints. The Spack upload endpoint can be leveraged for a Time-of-Check to Time-of-Use (TOCTOU) write in combination with a race condition to achieve remote code execution via path loading manipulation, allowing an unauthenticated actor to achieve remote code execution (RCE).This issue is known to affect Concerto from 12.1.2 through 12.2.0. Additional versions may be vulnerable.

Severity ?

10.0 (Critical)


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

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JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2025-34027"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-287",
      "CWE-367"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-05-21T22:15:50Z",
    "severity": "CRITICAL"
  },
  "details": "The Versa Concerto SD-WAN orchestration platform is vulnerable to an authentication bypass in the Traefik reverse proxy configuration, allowing at attacker to access administrative endpoints. The Spack upload endpoint can be leveraged for a Time-of-Check to Time-of-Use (TOCTOU) write in combination with a race condition to achieve remote code execution via path loading manipulation, allowing an unauthenticated actor to achieve remote code execution (RCE).This issue is known to affect Concerto from 12.1.2 through 12.2.0. Additional versions may be vulnerable.",
  "id": "GHSA-96gf-3rqf-c8m9",
  "modified": "2025-05-22T00:34:03Z",
  "published": "2025-05-22T00:34:03Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-34027"
    },
    {
      "type": "WEB",
      "url": "https://projectdiscovery.io/blog/versa-concerto-authentication-bypass-rce"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:L/SC:H/SI:H/SA:L/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-2025-34027 (GCVE-0-2025-34027)

Vulnerability from cvelistv5 – Published: 2025-05-21 21:58 – Updated: 2025-11-28 19:43

Title

Versa Concerto Authentication Bypass File Write Remote Code Execution

Summary

Severity ?

10 (Critical)


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

CWE

CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition

Assigner

VulnCheck

References

URL

Tags

https://projectdiscovery.io/blog/versa-concerto-a…

exploitmitigation

Impacted products

	Vendor	Product	Version
	Versa	Concerto	Affected: 12.1.2 , ≤ 12.2.0 (semver)

Credits

ProjectDiscovery Harsh Jaiswal Rahul Maini Parth Malhotra

Show details on NVD website

JSON

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                  },
                  {
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                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-05-27T00:00:00+00:00",
                "version": "2.0.3"
              },
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        "providerMetadata": {
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        "title": "CISA ADP Vulnrichment"
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    ],
    "cna": {
      "affected": [
        {
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            "Traefik"
          ],
          "product": "Concerto",
          "vendor": "Versa",
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              "status": "affected",
              "version": "12.1.2",
              "versionType": "semver"
            }
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  },
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}

Sightings

Author	Source	Type	Date

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-96GF-3RQF-C8M9

CVE-2025-34027 (GCVE-0-2025-34027)

Tags

Sightings

Nomenclature