1) Stack-based buffer overflow

EUVDB-ID: #VU64422

Risk: Critical

CVSSv3.1: 9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:U/RC:C]

CVE-ID: CVE-2022-20825

CWE-ID: CWE-121 - Stack-based Buffer Overflow

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error when processing HTTP packets. A remote unauthenticated attacker can send specially crafted HTTP packets to the web-based management interface, trigger a stack-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

RV110W Wireless-N VPN Firewall: All versions

Cisco Small Business RV130 Series VPN Routers: All versions

RV130W Wireless-N Multifunction VPN Router: All versions

RV215W Wireless-N VPN Router: All versions

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CPE2.3

• cpe:2.3:h:cisco_systems:rv110w_wireless-n_vpn_firewall:*:*:*:*:*:*:*:*
• Full software list in CPE2.3 format available after registration.

External links

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sb-rv-overflow-s2r82P9v
http://bst.cloudapps.cisco.com/bugsearch/bug/CSCwb95832
http://bst.cloudapps.cisco.com/bugsearch/bug/CSCwb95833
http://bst.cloudapps.cisco.com/bugsearch/bug/CSCwb95829

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.