Vulnerability Details : CVE-2020-3296
Multiple vulnerabilities in the web-based management interface of Cisco Small Business RV320 and RV325 Series Routers and Cisco Small Business RV016, RV042, and RV082 Routers could allow an authenticated, remote attacker with administrative privileges to execute arbitrary code on an affected device. The vulnerabilities are due to insufficient boundary restrictions on user-supplied input to scripts in the web-based management interface. An attacker with administrative privileges that are sufficient to log in to the web-based management interface could exploit each vulnerability by sending crafted requests that contain overly large values to an affected device, causing a stack overflow. A successful exploit could allow the attacker to cause the device to crash or allow the attacker to execute arbitrary code with root privileges on the underlying operating system.
Vulnerability category: OverflowMemory CorruptionExecute code
Exploit prediction scoring system (EPSS) score for CVE-2020-3296
Probability of exploitation activity in the next 30 days: 0.17%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 53 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2020-3296
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
---|---|---|---|---|---|
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-2020-3296
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The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer.Assigned by: ykramarz@cisco.com (Secondary)
-
The product writes data past the end, or before the beginning, of the intended buffer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2020-3296
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https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-rv-routers-stack-vUxHmnNz
Cisco Small Business RV Series Routers Stack Overflow Arbitrary Code Execution VulnerabilitiesVendor Advisory
Products affected by CVE-2020-3296
- cpe:2.3:o:cisco:rv320_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:rv325_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:rv016_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:rv042_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:rv042g_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:rv082_firmware:*:*:*:*:*:*:*:*