PT-2021-1968 · Cisco · Cisco Small Business Rv042G+5

Published 2021-02-03 · Updated 2021-02-05 · CVE-2021-1326

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 (affected versions not specified)

Description: The issue is related to insufficient validation of user-supplied input in the web-based management interface, which could allow an authenticated, remote attacker to execute arbitrary code or cause the device to restart unexpectedly. An attacker could exploit this by sending crafted HTTP requests to an affected device, potentially allowing them to execute arbitrary code as the root user on the underlying operating system or cause a denial of service condition. The attacker would need valid administrator credentials on the affected device to exploit this issue.

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

Stack Overflow

Weakness Enumeration

CWE-121

Related Identifiers

BDU:2021-00789

CVE-2021-1326

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 · 5

• https://bdu.fstec.ru/vul/2021-00789 · Security Note
• https://osv.dev/vulnerability/CVE-2021-1326 · Vendor Advisory
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-rv-overflow-ghZP68yj · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-1326 · Security Note
• https://t.me/cibsecurity/23091 · Telegram Post