Vulnerability Name: | CVE-2021-34718 (CCN-208900) | ||||||||||||
Assigned: | 2021-09-08 | ||||||||||||
Published: | 2021-09-08 | ||||||||||||
Updated: | 2021-09-21 | ||||||||||||
Summary: | A vulnerability in the SSH Server process of Cisco IOS XR Software could allow an authenticated, remote attacker to overwrite and read arbitrary files on the local device. This vulnerability is due to insufficient input validation of arguments that are supplied by the user for a specific file transfer method. An attacker with lower-level privileges could exploit this vulnerability by specifying Secure Copy Protocol (SCP) parameters when authenticating to a device. A successful exploit could allow the attacker to elevate their privileges and retrieve and upload files on a device that they should not have access to. | ||||||||||||
CVSS v3 Severity: | 8.1 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N) 7.1 High (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C)
7.1 High (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C)
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CVSS v2 Severity: | 8.5 High (CVSS v2 Vector: AV:N/AC:L/Au:S/C:C/I:C/A:N)
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Vulnerability Type: | CWE-88 | ||||||||||||
Vulnerability Consequences: | Gain Privileges | ||||||||||||
References: | Source: MITRE Type: CNA CVE-2021-34718 Source: XF Type: UNKNOWN cisco-cve202134718-priv-esc(208900) Source: CCN Type: Cisco Security Advisory cisco-sa-iosxr-scp-inject-QwZOCv2 Cisco IOS XR Software Arbitrary File Read and Write Vulnerability Source: CISCO Type: Vendor Advisory 20210908 Cisco IOS XR Software Arbitrary File Read and Write Vulnerability | ||||||||||||
Vulnerable Configuration: | Configuration 1: Configuration 2: Configuration 3: Configuration 4: Configuration 5: Configuration 6: Configuration 7: Configuration 8: Configuration CCN 1: ![]() | ||||||||||||
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