CVE-2021-34730
CVSS V2 High 10
CVSS V3 Critical 9.8
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.
Overview
- CVE ID
- CVE-2021-34730
- Assigner
- ykramarz@cisco.com
- Vulnerability Status
- Analyzed
- Published Version
- 2021-08-18T20:15:07
- Last Modified Date
- 2022-10-27T12:46:56
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| AND | ||||
| cpe:2.3:a:cisco:application_extension_platform:1.0.3.55:*:*:*:*:*:*:* | 1 | OR | ||
| AND | ||||
| cpe:2.3:o:cisco:rv110w_wireless-n_vpn_firewall_firmware:-:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:h:cisco:rv110w_wireless-n_vpn_firewall:-:*:*:*:*:*:*:* | 0 | OR | ||
| AND | ||||
| cpe:2.3:o:cisco:rv130_vpn_router_firmware:-:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:h:cisco:rv130_vpn_router:-:*:*:*:*:*:*:* | 0 | OR | ||
| AND | ||||
| cpe:2.3:o:cisco:rv130w_wireless-n_multifunction_vpn_router_firmware:-:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:h:cisco:rv130w_wireless-n_multifunction_vpn_router:-:*:*:*:*:*:*:* | 0 | OR | ||
| AND | ||||
| cpe:2.3:o:cisco:rv215w_wireless-n_vpn_router_firmware:-:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:h:cisco:rv215w_wireless-n_vpn_router:-:*:*:*:*:*:*:* | 0 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:L/Au:N/C:C/I:C/A:C
- Access Vector
- NETWORK
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- COMPLETE
- Integrity Impact
- COMPLETE
- Availability Impact
- COMPLETE
- Base Score
- 10
- Severity
- HIGH
- Exploitability Score
- 10
- Impact Score
- 10
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- HIGH
- Base Score
- 9.8
- Base Severity
- CRITICAL
- Exploitability Score
- 3.9
- Impact Score
- 5.9
References
| Reference URL | Reference Tags |
|---|---|
| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cisco-sb-rv-overflow-htpymMB5 | Vendor Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2021-34730 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-34730 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 06:56:36 | Added to TrackCVE | |||
| 2022-12-05 08:33:09 | psirt@cisco.com | ykramarz@cisco.com | CVE Assigner | updated |
| 2022-12-05 08:33:09 | 2021-08-18T20:15Z | 2021-08-18T20:15:07 | CVE Published Date | updated |
| 2022-12-05 08:33:09 | 2022-10-27T12:46:56 | CVE Modified Date | updated | |
| 2022-12-05 08:33:09 | Analyzed | Vulnerability Status | updated |