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CVE-2021-1318

HIGHCVSS 7.2/10EPSS 2.97%

Last modified

CVE-2021-1318 is a high-severity vulnerability rated 7.2/10 on the CVSS scale. 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 inject arbitrary commands that are executed with root privileges. These vulnerabilities are due to improper validation of user-supplied input in the web-based management interface. EPSS estimates a 2.97% chance of exploitation in the next 30 days.

Description

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 inject arbitrary commands that are executed with root privileges. 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 a targeted device. A successful exploit could allow the attacker to execute arbitrary code as the root user on the underlying operating system. To exploit these vulnerabilities, an attacker would need to have valid administrator credentials on an affected device.

Metrics

CVSS 3.1
7.2/10

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

EPSS Probability
2.97%

85.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
CiscoRv016 Multi-Wan Vpn Router Firmware<= 4.2.3.14
CiscoRv042 Dual Wan Vpn Router Firmware<= 4.2.3.14
CiscoRv042g Dual Gigabit Wan Vpn Router Firmware<= 4.2.3.14
CiscoRv082 Dual Wan Vpn Router Firmware<= 4.2.3.14
CiscoRv320 Dual Gigabit Wan Vpn Router Firmware<= 1.5.1.11
CiscoRv325 Dual Gigabit Wan Vpn Router Firmware<= 1.5.1.11

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2021-1318?
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 inject arbitrary commands that are executed with root privileges. 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 a targeted device. A successful exploit could allow the attacker to execute arbitrary code as the root user on the underlying operating system. To exploit these vulnerabilities, an attacker would need to have valid administrator credentials on an affected device.
How severe is CVE-2021-1318?
CVE-2021-1318 has a CVSS score of 7.2/10 (HIGH severity). The EPSS model estimates a 2.97% probability of exploitation in the next 30 days.
How do I fix CVE-2021-1318?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-1318?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST