RCE in Cisco Application Extension Platform
CVE-2022-20888
Multiple vulnerabilities in the web-based management interface of Cisco Small Business RV110W, RV130, RV130W, and RV215W Routers could allow an authenticated, remote attacker to execute arbitrary code on an affected device or cause the device to restart unexpectedly, resulting in a denial of service (DoS) condition. These vulnerabilities are due to insufficient validation of user fields within incoming HTTP packets. An attacker could exploit these vulnerabilities by sending a crafted request to the web-based management interface. A successful exploit could allow the attacker to execute arbitrary commands on an affected device with root-level privileges or to cause the device to restart unexpectedly, resulting in a DoS condition. To exploit these vulnerabilities, an attacker would need to have valid Administrator credentials on the affected device. Cisco has not released software updates that address these vulnerabilities.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.012 (67.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 67th percentile — 67.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: +0.000
Affected products
- Cisco Application Extension Platform — versions 1.0.3.55
- Cisco Small Business Rv Series Router Firmware
- Cisco Rv110w
- Cisco Rv110w Firmware — versions 1.0.3.55
- Cisco Rv130
- Cisco Rv130 Firmware — versions 1.0.3.55
- Cisco Rv130w
- Cisco Rv130w Firmware — versions 1.0.3.55
- Cisco Rv215w
- Cisco Rv215w Firmware — versions 1.0.3.55
Weakness classification (CWE)
References
- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sb-rv-rc… (vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2022-20888?
- CVE-2022-20888 is a medium-severity vulnerability in Cisco Application Extension Platform, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 4.7/10. Published 2022-07-21.
- How severe is CVE-2022-20888?
- Medium severity. CVSS v3 base score is 4.7 out of 10.