Command Injection in Cisco IOS XE Software

1) Command Injection

EUVDB-ID: #VU51786

Risk: Low

CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-1384

CWE-ID: CWE-77 - Command injection

Exploit availability: No

Description

The vulnerability allows a remote user to execute arbitrary commands on the target system.

The vulnerability exists due to improper input validation in Cisco IOx application hosting environment. A remote administrator can use a specially crafted application .tar file and execute arbitrary commands on the target system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Cisco IOS XE: 16.3.1 - 17.3.2

Cisco 2600 Series Multiservice Platforms: All versions

CPE2.3

• cpe:2.3:o:cisco_systems:cisco_ios_xe:16.3.1:*:*:*:*:*:*:*
• cpe:2.3:o:cisco_systems:cisco_ios_xe:17.3.2:*:*:*:*:*:*:*
• cpe:2.3:h:cisco_systems:cisco_2600_series_multiservice_platforms:*:*:*:*:*:*:*:*

External links

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iox-cmdinj-RkSURGHG

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.