RCE in Cisco Application Extension Platform
CVE-2022-20873
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
EPSS: 0.011 (62.3th percentile) — read the EPSS interpretation.
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.
Affected products
- Cisco Application_extension_platform — versions 1.0.3.55
- Cisco Small Business Rv Series Router Firmware — versions n/a
- 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
- psirt@cisco.com (x_refsource_CISCO, vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2022-20873?
- CVE-2022-20873 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-2022-20873?
- Medium severity. CVSS v3 base score is 4.7 out of 10.