CVE-2021-34730
Cisco UPnP Service Code Execution and Denial of Service Vulnerability
Description
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.
INFO
Published Date :
Aug. 18, 2021, 8:15 p.m.
Last Modified :
Nov. 7, 2023, 3:36 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.9
Exploitability Score :
3.9
Public PoC/Exploit Available at Github
CVE-2021-34730 has a 2 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
Affected Products
The following products are affected by CVE-2021-34730
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2021-34730.
| URL | Resource |
|---|---|
| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cisco-sb-rv-overflow-htpymMB5 | Vendor Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Changelog CVE-2021-33044,CVE-2021-33045 Identity authentication bypass vulnerability found in some Dahua products CVE-2021-27248,CVE-2021-27249,CVE-2021-27250,CVE-2021-34860,CVE-2021-34861,CVE-2021-34862,CVE-2021-34863 Multiple vulnerabilities in DAP-2020 H/W rev. Ax with F/W v1.01 and below HTTP Path Traversal CVE-2019-7406 RCE vulnerability in TP-Link Wi-Fi Extenders via a malformed user agent field in HTTP headers CVE-2020-2501,CVE-2021-28797 Stack Buffer Overflow in QNAP Surveillance Station CVE-2021-34730 Critical UPnP Service Flaw on Cisco Small Business RV Series Routers CVE-2020-35785 Multiple HTTP authentication vulnerabilities on DGN2200v1
Cisco RV110w UPnP stack overflow
Python
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-34730 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-34730 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Nov. 07, 2023
Action Type Old Value New Value Removed CVSS V3 Cisco Systems, Inc. AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Added CVSS V3.1 Cisco Systems, Inc. AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H -
Reanalysis by [email protected]
Oct. 27, 2022
Action Type Old Value New Value Removed CWE NIST CWE-20 Added CWE NIST CWE-787 -
Initial Analysis by [email protected]
Aug. 20, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:C/I:C/A:C) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cisco-sb-rv-overflow-htpymMB5 No Types Assigned https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cisco-sb-rv-overflow-htpymMB5 Vendor Advisory Added CWE NIST CWE-20 Added CPE Configuration OR *cpe:2.3:a:cisco:application_extension_platform:1.0.3.55:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:cisco:rv110w_wireless-n_vpn_firewall_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:cisco:rv110w_wireless-n_vpn_firewall:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:cisco:rv130_vpn_router_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:cisco:rv130_vpn_router:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:cisco:rv130w_wireless-n_multifunction_vpn_router_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:cisco:rv130w_wireless-n_multifunction_vpn_router:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:cisco:rv215w_wireless-n_vpn_router_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:cisco:rv215w_wireless-n_vpn_router:-:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-34730 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-34730
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.57 }} 0.03%
score
0.78039
percentile