#VU51786 Command Injection in Cisco IOS XE and Cisco 2600 Series Multiservice Platforms - CVE-2021-1384

Vulnerability identifier: #VU51786

Vulnerability 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

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Cisco IOS XE
Operating systems & Components / Operating system
Cisco 2600 Series Multiservice Platforms
Hardware solutions / Routers & switches, VoIP, GSM, etc

Vendor: Cisco Systems, Inc

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

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

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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.