PT-2022-3973 · Cisco · Cisco Small Business Rv215W+3

Published 2022-07-20 · Updated 2022-07-26 · CVE-2022-20895

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, restrict access to the web-based management interface until a fix is available. As a temporary workaround, consider disabling remote access to the management interface to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Buffer Overflow

Weakness Enumeration

CWE-119

CWE-120

Related Identifiers

BDU:2022-04806

CVE-2022-20895

Affected Products

Cisco Small Business Rv110W

Cisco Small Business Rv130

Cisco Small Business Rv130W

Cisco Small Business Rv215W

References · 5

• https://osv.dev/vulnerability/CVE-2022-20895 · Vendor Advisory
• https://bdu.fstec.ru/vul/2022-04806 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2022-20895 · Security Note
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sb-rv-rce-overflow-ygHByAK · Vendor Advisory
• https://cybersecurity-help.cz/vdb/SB2022072215 · Note