PT-2021-1970 · Cisco · Rv016+5

Published 2021-02-03 · Updated 2021-02-05 · CVE-2021-1324

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 issue is related to improper validation of user-supplied input in the web-based management interface of the affected routers. An authenticated, remote attacker could exploit this by sending crafted HTTP requests to execute arbitrary code as the root user on the underlying operating system or cause the device to reload, resulting in a denial of service (DoS) condition. The attacker would need valid administrator credentials on the affected device to exploit the issue.

Recommendations: For Cisco Small Business RV016, RV042, RV042G, RV082, RV320, and RV325 Routers, consider restricting access to the web-based management interface until a fix is available. As a temporary workaround, limit the use of administrator credentials to minimize the risk of exploitation. Avoid using the web-based management interface for critical operations until the issue is resolved. 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:2021-00791

CVE-2021-1324

Affected Products

Rv016

Rv042

Rv042G

Rv082

Rv320

Rv325

References · 4

• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-rv-overflow-ghZP68yj · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-1324 · Security Note
• https://osv.dev/vulnerability/CVE-2021-1324 · Vendor Advisory
• https://bdu.fstec.ru/vul/2021-00791 · Security Note