« Back to list

CVE-2008-1845

Status: ModifiedHigh (7.2)—

The Korn shell (aka mksh) before R33d on MirOS (aka MirBSD) does not flush the tty's I/O when invoking mksh in a new terminal, which allows local users to gain privileges by opening a virtual terminal and entering command sequences, which might later be executed in opportunistic circumstances by a different user who launches mksh and specifies that terminal with the -T option.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (1)

Mirbsd — Miros

CWEs

References

Raw JSON (NVD)

Show
{
  "id": "CVE-2008-1845",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 7.2,
          "accessVector": "LOCAL",
          "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C",
          "authentication": "NONE",
          "integrityImpact": "COMPLETE",
          "accessComplexity": "LOW",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "COMPLETE"
        },
        "acInsufInfo": false,
        "impactScore": 10,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": true,
        "exploitabilityScore": 3.9,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2008-04-16T17:05:00.000",
  "references": [
    {
      "url": "http://secunia.com/advisories/29803",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.mirbsd.org/mksh.htm#clog",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.osvdb.org/44365",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securityfocus.com/bid/28768",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/41794",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://secunia.com/advisories/29803",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.mirbsd.org/mksh.htm#clog",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.osvdb.org/44365",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/bid/28768",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/41794",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-Other"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The Korn shell (aka mksh) before R33d on MirOS (aka MirBSD) does not flush the tty's I/O when invoking mksh in a new terminal, which allows local users to gain privileges by opening a virtual terminal and entering command sequences, which might later be executed in opportunistic circumstances by a different user who launches mksh and specifies that terminal with the -T option."
    },
    {
      "lang": "es",
      "value": "El intérprete de comandos Korn (también conocido como mksh) antes de R33d en MirOS (también conocido como MirBSD) no renueva la E/S tty cuando invoca a mksh en un terminal nuevo, lo que permite a usuarios locales obtener privilegios abriendo un terminal virtual e introduciendo secuencias de comandos,  que se podrían ejecutar posteriormente en circunstancias oportunas por un usuario distinto que lance mksh y especifique ese terminal con la opción -T."
    }
  ],
  "lastModified": "2026-06-16T22:52:37.120",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:mirbsd:miros:*:c:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "EA2CBA6E-BBEC-4FD6-B32A-1748F6528339",
              "versionEndIncluding": "33"
            },
            {
              "criteria": "cpe:2.3:o:mirbsd:miros:33:a:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "EE115BFE-1E0D-4E7D-992A-FFDB4B765EB9"
            },
            {
              "criteria": "cpe:2.3:o:mirbsd:miros:33:b:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "1E87BD42-6F51-4E8E-93DE-9DA8B478A078"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}