CVE-2021-34730
Cisco Small Business RV110W, RV130, RV130W, and RV215W Routers Remote Command Execution and Denial of Service Vulnerability
Vexday Risk Score
53Attention
SSVC decision (CISA)
Attend
PoC available → attend closely
CVSS 9.8EPSS 13.6%KEV nãoPoC públicaNuclei —Metasploit —Patch referenciado
Lifecycle
18 Aug 2021Published on NVD
30 Sep 2021Public PoC
Recommendation: Plan a near-term fix — a public PoC already exists.
A vulnerability in the Universal Plug-and-Play (UPnP) service of Cisco Small Business RV110W, RV130, RV130W, and RV215W Routers could allow an unauthenticated, remote attacker to execute arbitrary code or cause an affected device to restart unexpectedly, resulting in a denial of service (DoS) condition. This vulnerability is due to improper validation of incoming UPnP traffic. An attacker could exploit this vulnerability by sending a crafted UPnP request to an affected device. A successful exploit could allow the attacker to execute arbitrary code as the root user on the underlying operating system or cause the device to reload, resulting in a DoS condition. Cisco has not released software updates that address this vulnerability.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products
Cisco · Cisco Small Business RV Series Router Firmwarepublic PoCs found — 1
githubgithub.com/badmonkey7/CVE-2021-34730★ 28⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
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