Detections
Analytics
Cisco IOS XE Software DECnet Phase IV/OSI DoS (cisco-sa-iosxe-decnet-dos-cuPWDkyL)
medium Nessus Plugin ID 149789
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Synopsis
The remote device is missing a vendor-supplied security patchDescription
According to its self-reported version, Cisco IOS-XE Software is affected by a vulnerability in the DECnet Phase IV and DECnet/OSI protocol processing. This vulnerability allows an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to insufficient input validation of DECnet traffic that is received by an affected device. An attacker could exploit this vulnerability by sending DECnet traffic to an affected device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition.Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.
Solution
Upgrade to the relevant fixed version referenced in Cisco bug ID CSCvv51476See Also
http://www.nessus.org/u?4578be34
http://tools.cisco.com/security/center/viewErp.x?alertId=ERP-74408
Plugin Details
Severity: Medium
ID: 149789
File Name: cisco-sa-iosxe-decnet-dos-cuPWDkyL-iosxe.nasl
Version: 1.7
Type: combined
Family: CISCO
Published: 5/20/2021
Updated: 9/24/2021
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: Low
Score: 3.6
CVSS v2
Risk Factor: Low
Base Score: 2.9
Temporal Score: 2.1
Vector: CVSS2#AV:A/AC:M/Au:N/C:N/I:N/A:P
CVSS Score Source: CVE-2021-1352
CVSS v3
Risk Factor: Medium
Base Score: 6.5
Temporal Score: 5.7
Vector: CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
Vulnerability Information
CPE: cpe:/o:cisco:ios_xe
Required KB Items: Host/Cisco/IOS-XE/Version
Exploit Ease: No known exploits are available
Patch Publication Date: 3/24/2021
Vulnerability Publication Date: 3/24/2021
Reference Information
CVE: CVE-2021-1352