FKIE_CVE-2022-20676

Vulnerability from fkie_nvd - Published: 2022-04-15 15:15 - Updated: 2024-11-21 06:43
Severity ?
5.1 (Medium) - CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:N
6.7 (Medium) - CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Summary
A vulnerability in the Tool Command Language (Tcl) interpreter of Cisco IOS XE Software could allow an authenticated, local attacker to escalate from privilege level 15 to root-level privileges. This vulnerability is due to insufficient input validation of data that is passed into the Tcl interpreter. An attacker could exploit this vulnerability by loading malicious Tcl code on an affected device. A successful exploit could allow the attacker to execute arbitrary commands as root. By default, Tcl shell access requires privilege level 15.
References
psirt@cisco.comhttps://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-priv-esc-grbtubUVendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-priv-esc-grbtubUVendor Advisory
Impacted products
Vendor Product Version
cisco ios_xe 16.12.1z2
cisco ios_xe 17.2.1
cisco ios_xe 17.2.1a
cisco ios_xe 17.2.1r
cisco ios_xe 17.2.1v
cisco ios_xe 17.2.2
cisco ios_xe 17.2.3
cisco ios_xe 17.3.1
cisco ios_xe 17.3.1a
cisco ios_xe 17.3.1w
cisco ios_xe 17.3.1x
cisco ios_xe 17.3.1z
cisco ios_xe 17.3.2
cisco ios_xe 17.3.2a
cisco ios_xe 17.3.3
cisco ios_xe 17.3.3a
cisco ios_xe 17.3.4
cisco ios_xe 17.3.4a
cisco ios_xe 17.3.4b
cisco ios_xe 17.3.4c
cisco ios_xe 17.4.1
cisco ios_xe 17.4.1a
cisco ios_xe 17.4.1b
cisco ios_xe 17.4.1c
cisco ios_xe 17.4.2
cisco ios_xe 17.4.2a
cisco ios_xe 17.5.1
cisco ios_xe 17.5.1a
cisco ios_xe 17.5.1c
To clipboard 

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  "cveTags": [],
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      "value": "A vulnerability in the Tool Command Language (Tcl) interpreter of Cisco IOS XE Software could allow an authenticated, local attacker to escalate from privilege level 15 to root-level privileges. This vulnerability is due to insufficient input validation of data that is passed into the Tcl interpreter. An attacker could exploit this vulnerability by loading malicious Tcl code on an affected device. A successful exploit could allow the attacker to execute arbitrary commands as root. By default, Tcl shell access requires privilege level 15."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad en el int\u00e9rprete de Tool Command Language (Tcl) del software Cisco IOS XE podr\u00eda permitir a un atacante local autenticado escalar desde el nivel de privilegio 15 a privilegios de nivel root. Esta vulnerabilidad es debido a que no ha sido suficientemente la entrada de datos que son pasados al int\u00e9rprete Tcl. Un atacante podr\u00eda explotar esta vulnerabilidad cargando c\u00f3digo Tcl malicioso en un dispositivo afectado. Una explotaci\u00f3n con \u00e9xito podr\u00eda permitir al atacante ejecutar comandos arbitrarios como root. Por defecto, el acceso al shell Tcl requiere un nivel de privilegio 15"
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  "id": "CVE-2022-20676",
  "lastModified": "2024-11-21T06:43:17.770",
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        "acInsufInfo": false,
        "baseSeverity": "HIGH",
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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.
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  • 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.