CVE-2021-1459: A vulnerability in the web-based management interface of Cisco Small Business RV110W, RV130, RV130W, and RV215W Routers could allow an unauthenticated, remote…

PriorityP269critical9.8CVSS 3.1

AVNACLPRNUINSUCHIHAH

EPSS

3.02%

85.9th percentile

A vulnerability in the web-based management interface of Cisco Small Business RV110W, RV130, RV130W, and RV215W Routers could allow an unauthenticated, remote attacker to execute arbitrary code on an affected device. The vulnerability is due to improper validation of user-supplied input in the web-based management interface. An attacker could exploit this vulnerability by sending crafted HTTP requests to a targeted device. A successful exploit could allow the attacker to execute arbitrary code as the root user on the underlying operating system of the affected device. Cisco has not released software updates that address this vulnerability.

Affected

6 ranges

Vendor	Product	Version range	Fixed in
cisco	cisco_small_business_rv_series_router_firmware	—	—
cisco	rv110w_firmware	—	—
cisco	rv130_firmware	—	—
cisco	rv130w_firmware	—	—
cisco	rv215w_firmware	—	—
cisco	small_business_rv110w_rv130_rv130w_and_rv215w_routers	—	—

Detection & IOCsextracted from sources · hover to see the quote

→Exploit vector is crafted HTTP requests sent to the web-based management interface of affected Cisco Small Business routers (RV110W, RV130, RV130W, RV215W); monitor for anomalous or malformed HTTP requests targeting these devices' management interfaces. ↗
→Exploitation requires no authentication; any HTTP request from an unauthenticated source to the management interface of affected devices should be treated as suspicious and investigated. ↗
→Successful exploitation results in code execution as root on the underlying OS; look for unexpected root-level processes or commands spawned from the web server process on affected Cisco RV-series devices. ↗

·No software fix is available from Cisco for this vulnerability; affected devices (RV110W, RV130, RV130W, RV215W) cannot be patched and should have their management interface access restricted or devices replaced. ↗

CVSS provenance

nvdv3.19.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

nvdv2.010.0CRITICALAV:N/AC:L/Au:N/C:C/I:C/A:C

vendor_cisco9.8CRITICAL

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