Vulnerability Details : CVE-2021-1343
Multiple vulnerabilities in the web-based management interface of Cisco Small Business RV016, RV042, RV042G, RV082, RV320, and RV325 Routers could allow an authenticated, remote attacker to execute arbitrary code or cause an affected device to restart unexpectedly. These vulnerabilities are due to improper validation of user-supplied input in the web-based management interface. An attacker could exploit these vulnerabilities by sending crafted HTTP requests 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 denial of service (DoS) condition. To exploit these vulnerabilities, an attacker would need to have valid administrator credentials on the affected device.
Vulnerability category: Execute codeDenial of service
Products affected by CVE-2021-1343
- cpe:2.3:o:cisco:rv082_dual_wan_vpn_router_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:rv016_multi-wan_vpn_router_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:rv042_dual_wan_vpn_router_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:rv042g_dual_gigabit_wan_vpn_router_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:rv320_dual_gigabit_wan_vpn_router_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:rv325_dual_gigabit_wan_vpn_router_firmware:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-1343
0.24%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 65 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-1343
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
9.0
|
HIGH | AV:N/AC:L/Au:S/C:C/I:C/A:C |
8.0
|
10.0
|
NIST | |
7.2
|
HIGH | CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H |
1.2
|
5.9
|
Cisco Systems, Inc. | |
7.2
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H |
1.2
|
5.9
|
NIST |
CWE ids for CVE-2021-1343
-
A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).Assigned by: ykramarz@cisco.com (Primary)
References for CVE-2021-1343
-
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-rv-overflow-ghZP68yj
Cisco Small Business RV Series Routers Management Interface Remote Command Execution and Denial of Service VulnerabilitiesVendor Advisory
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