github - ghsa-mcg2-rcmm-mhww

GHSA-MCG2-RCMM-MHWW

Vulnerability from github – Published: 2025-11-06 00:30 – Updated: 2025-11-10 21:30

Details

Improper handling of the authentication token in the Amazon WorkSpaces client for Linux, versions 2023.0 through 2024.8, may expose the authentication token for DCV-based WorkSpaces to other local users on the same client machine. Under certain circumstances, a local user may be able to extract another local user's authentication token from the shared client machine and access their WorkSpace.

To mitigate this issue, users should upgrade to the Amazon WorkSpaces client for Linux version 2025.0 or later.

Severity ?

8.8 (High)


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

8.8 (High)


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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2025-12779"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-497"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-11-05T22:15:33Z",
    "severity": "HIGH"
  },
  "details": "Improper handling of the authentication token in the Amazon WorkSpaces client for Linux, versions 2023.0 through 2024.8, may expose the authentication token for DCV-based WorkSpaces to other local users on the same client machine. Under certain circumstances, a local user may be able to extract another local user\u0027s authentication token from the shared client machine and access their WorkSpace.\n\nTo mitigate this issue, users should upgrade to the Amazon WorkSpaces client for Linux version 2025.0 or later.",
  "id": "GHSA-mcg2-rcmm-mhww",
  "modified": "2025-11-10T21:30:32Z",
  "published": "2025-11-06T00:30:26Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-12779"
    },
    {
      "type": "WEB",
      "url": "https://aws.amazon.com/security/security-bulletins/AWS-2025-025"
    },
    {
      "type": "WEB",
      "url": "https://docs.aws.amazon.com/workspaces/latest/userguide/amazon-workspaces-linux-client.html#linux-release-notes"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/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-2025-12779 (GCVE-0-2025-12779)

Vulnerability from cvelistv5 – Published: 2025-11-05 21:20 – Updated: 2025-11-10 18:52

Summary

Severity ?

8.8 (High)


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

8.8 (High)


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

CWE

CWE-497 - Access of Sensitive System Information to an Unauthorized Control Sphere

Assigner

AMZN

References

URL

Tags

	https://aws.amazon.com/security/security-bulletin…	vendor-advisory
	https://docs.aws.amazon.com/workspaces/latest/use…	patchrelease-notes

Impacted products

	Vendor	Product	Version
	Amazon	Amazon WorkSpaces	Unaffected: 2025.0

Credits

Visionlink

Show details on NVD website

JSON

To clipboard

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                "id": "CVE-2025-12779",
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                  },
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                  }
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                "role": "CISA Coordinator",
                "timestamp": "2025-11-06T00:00:00+00:00",
                "version": "2.0.3"
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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-MCG2-RCMM-MHWW

CVE-2025-12779 (GCVE-0-2025-12779)

Tags

Sightings

Nomenclature