Vulnerability-Lookup

GHSA-C7V4-8HC9-H72R

Vulnerability from github – Published: 2022-05-24 16:48 – Updated: 2022-05-24 16:48

Details

An issue was discovered on Actiontec T2200H T2200H-31.128L.08 devices, as distributed by Telus. By attaching a UART adapter to the UART pins on the system board, an attacker can use a special key sequence (Ctrl-) to obtain a shell with root privileges. After gaining root access, the attacker can mount the filesystem read-write and make permanent modifications to the device including bricking of the device, disabling vendor management of the device, preventing automatic upgrades, and permanently installing malicious code on the device.

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{
  "affected": [],
  "aliases": [
    "CVE-2019-12789"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2019-06-17T17:15:00Z",
    "severity": "HIGH"
  },
  "details": "An issue was discovered on Actiontec T2200H T2200H-31.128L.08 devices, as distributed by Telus. By attaching a UART adapter to the UART pins on the system board, an attacker can use a special key sequence (Ctrl-\\) to obtain a shell with root privileges. After gaining root access, the attacker can mount the filesystem read-write and make permanent modifications to the device including bricking of the device, disabling vendor management of the device, preventing automatic upgrades, and permanently installing malicious code on the device.",
  "id": "GHSA-c7v4-8hc9-h72r",
  "modified": "2022-05-24T16:48:08Z",
  "published": "2022-05-24T16:48:08Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-12789"
    },
    {
      "type": "WEB",
      "url": "https://www.actiontec.com/blog"
    },
    {
      "type": "WEB",
      "url": "http://seclists.org/fulldisclosure/2019/Jun/10"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2019-12789 (GCVE-0-2019-12789)

Vulnerability from cvelistv5 – Published: 2019-06-17 16:19 – Updated: 2024-08-04 23:32

Summary

An issue was discovered on Actiontec T2200H T2200H-31.128L.08 devices, as distributed by Telus. By attaching a UART adapter to the UART pins on the system board, an attacker can use a special key sequence (Ctrl-\) to obtain a shell with root privileges. After gaining root access, the attacker can mount the filesystem read-write and make permanent modifications to the device including bricking of the device, disabling vendor management of the device, preventing automatic upgrades, and permanently installing malicious code on the device.

Severity

No CVSS data available.

CWE

Assigner

mitre

References

2 references

URL	Tags
https://www.actiontec.com/blog/	x_refsource_MISC
http://seclists.org/fulldisclosure/2019/Jun/10	x_refsource_MISC

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          "dateUpdated": "2024-08-04T23:32:55.167Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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            ],
            "url": "https://www.actiontec.com/blog/"
          },
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            "tags": [
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              "x_transferred"
            ],
            "url": "http://seclists.org/fulldisclosure/2019/Jun/10"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
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        }
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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-C7V4-8HC9-H72R

CVE-2019-12789 (GCVE-0-2019-12789)

Tags

Sightings

Nomenclature