PT-2022-3967 · Cisco · Cisco Small Business Rv345+3

Q. Kaiser · Published 2022-08-03 · Updated 2022-08-12 · CVE-2022-20827

Positive Technologies (AI Summary)

CVSS v3.1

10

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions Cisco Small Business RV160, RV260, RV340, and RV345 Series Routers (affected versions not specified)

Description The issue is related to multiple vulnerabilities in the Cisco Small Business RV160, RV260, RV340, and RV345 Series Routers, which could allow an unauthenticated, remote attacker to execute arbitrary code or cause a denial of service (DoS) condition on an affected device. A vulnerability in the web filter database update function of the router's firmware is associated with errors in processing input data, potentially allowing a remote attacker to execute arbitrary code with root privileges.

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

OS Command Injection

Buffer Overflow

Weakness Enumeration

CWE-78

CWE-120

Related Identifiers

BDU:2022-04800

CVE-2022-20827

ZDI-22-1047

Affected Products

Cisco Small Business Rv160

Cisco Small Business Rv260

Cisco Small Business Rv340

Cisco Small Business Rv345

References · 8

• https://zerodayinitiative.com/advisories/ZDI-22-1047 · Security Note
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sb-mult-vuln-CbVp4SUR · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-20827 · Security Note
• https://osv.dev/vulnerability/CVE-2022-20827 · Vendor Advisory
• https://bdu.fstec.ru/vul/2022-04800 · Security Note
• https://t.me/echeloneyes/523 · Telegram Post
• https://t.me/true_secator/3253 · Telegram Post
• https://t.me/poxek/2199 · Telegram Post