PT-2021-1978 · Cisco · Cisco Small Business Rv042G+5

Kai Cheng · Published 2021-02-03 · Updated 2022-08-05 · CVE-2021-1316

Positive Technologies (AI Summary)

CVSS v2.0

9.0

High

Base vector

AV:N/AC:L/Au:S/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions Cisco Small Business RV016, RV042, RV042G, RV082, RV320, and RV325 Routers (affected versions not specified)

Description The vulnerability is related to insufficient validation of user-supplied input in the web-based management interface of the affected routers. This could allow an authenticated, remote attacker to inject arbitrary commands that are executed with root privileges. An attacker could exploit this by sending crafted HTTP requests to a targeted device, potentially allowing the execution of arbitrary code as the root user on the underlying operating system. The attacker would need valid administrator credentials on an affected device to exploit the vulnerability.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

RCE

OS Command Injection

Weakness Enumeration

CWE-20

CWE-78

Related Identifiers

BDU:2021-00800

CVE-2021-1316

Affected Products

Cisco Small Business Rv016

Cisco Small Business Rv042

Cisco Small Business Rv042G

Cisco Small Business Rv082

Cisco Small Business Rv320

Cisco Small Business Rv325

References · 6

• https://nvd.nist.gov/vuln/detail/CVE-2021-1316 · Security Note
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-rv-command-inject-BY4c5zd · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-1316 · Vendor Advisory
• https://bdu.fstec.ru/vul/2021-00800 · Security Note
• https://t.me/cibsecurity/23083 · Telegram Post
• https://t.me/cvenotify/9596 · Telegram Post