PT-2022-4142 · Cisco · Cisco Small Business Rv215W+3

Chuan Qin + 2 · Published 2022-07-20 · Updated 2022-07-26 · CVE-2022-20892

Positive Technologies (AI Summary)

CVSS v3.1

7.2

High

Base vector

AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Cisco Small Business RV110W, RV130, RV130W, and RV215W Routers (affected versions not specified)

Description The issue is related to insufficient validation of user fields within incoming HTTP packets, which could allow a remote attacker to execute arbitrary code or cause a denial of service condition by sending a crafted request to the web-based management interface. The attacker would need to have valid Administrator credentials on the affected device to exploit this issue.

Recommendations For Cisco Small Business RV110W, RV130, RV130W, and RV215W Routers, consider restricting access to the web-based management interface until a fix is available. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Buffer Overflow

Weakness Enumeration

CWE-120

Related Identifiers

BDU:2022-04985

CVE-2022-20892

Affected Products

Cisco Small Business Rv110W

Cisco Small Business Rv130

Cisco Small Business Rv130W

Cisco Small Business Rv215W

References · 4

• https://bdu.fstec.ru/vul/2022-04985 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2022-20892 · Security Note
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sb-rv-rce-overflow-ygHByAK · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2022-20892 · Vendor Advisory