Vulnerability Name: | CVE-2018-0123 (CCN-138778) | ||||||||||||
Assigned: | 2017-11-27 | ||||||||||||
Published: | 2018-02-07 | ||||||||||||
Updated: | 2019-10-09 | ||||||||||||
Summary: | A Path Traversal vulnerability in the diagnostic shell for Cisco IOS and IOS XE Software could allow an authenticated, local attacker to use certain diagnostic shell commands that can overwrite system files. These system files may be sensitive and should not be able to be overwritten by a user of the diagnostic shell. The vulnerability is due to lack of proper input validation for certain diagnostic shell commands. An attacker could exploit this vulnerability by authenticating to the device, entering the diagnostic shell, and providing crafted user input to commands at the local diagnostic shell CLI. Successful exploitation could allow the attacker to overwrite system files that should be restricted. Cisco Bug IDs: CSCvg41950. | ||||||||||||
CVSS v3 Severity: | 5.5 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N) 4.8 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C)
3.9 Low (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C)
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CVSS v2 Severity: | 4.9 Medium (CVSS v2 Vector: AV:L/AC:L/Au:N/C:N/I:C/A:N)
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Vulnerability Type: | CWE-22 | ||||||||||||
Vulnerability Consequences: | Obtain Information | ||||||||||||
References: | Source: MITRE Type: CNA CVE-2018-0123 Source: BID Type: Third Party Advisory, VDB Entry 102967 Source: CCN Type: BID-102967 Cisco IOS and IOS XE Software CVE-2018-0123 Local Arbitrary File Overwrite Vulnerability Source: SECTRACK Type: Third Party Advisory, VDB Entry 1040346 Source: XF Type: UNKNOWN cisco-ios-cve20180123-dir-traversal(138778) Source: CCN Type: Cisco Security Advisory cisco-sa-20180207-ios Cisco IOS and IOS XE Software Diagnostic Shell Path Traversal Vulnerability Source: CONFIRM Type: Vendor Advisory https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180207-ios | ||||||||||||
Vulnerable Configuration: | Configuration 1: Configuration CCN 1: ![]() | ||||||||||||
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