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CVE-2019-1912

CRITICALCVSS 9.1/10EPSS 17.04%

Last modified

CVE-2019-1912 is a critical-severity vulnerability rated 9.1/10 on the CVSS scale. A vulnerability in the web management interface of Cisco Small Business 220 Series Smart Switches could allow an unauthenticated, remote attacker to upload arbitrary files. The vulnerability is due to incomplete authorization checks in the web management interface. EPSS estimates a 17.04% chance of exploitation in the next 30 days.

Description

A vulnerability in the web management interface of Cisco Small Business 220 Series Smart Switches could allow an unauthenticated, remote attacker to upload arbitrary files. The vulnerability is due to incomplete authorization checks in the web management interface. An attacker could exploit this vulnerability by sending a malicious request to certain parts of the web management interface. Depending on the configuration of the affected switch, the malicious request must be sent via HTTP or HTTPS. A successful exploit could allow the attacker to modify the configuration of an affected device or to inject a reverse shell. This vulnerability affects Cisco Small Business 220 Series Smart Switches running firmware versions prior to 1.1.4.4 with the web management interface enabled. The web management interface is enabled via both HTTP and HTTPS by default.

Metrics

CVSS 3.1
9.1/10

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

EPSS Probability
17.04%

96.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
CiscoSf-220-24 Firmware< 1.1.4.4
CiscoSf220-24p Firmware< 1.1.4.4
CiscoSf220-48 Firmware< 1.1.4.4
CiscoSf220-48p Firmware< 1.1.4.4
CiscoSg220-26 Firmware< 1.1.4.4
CiscoSg220-26p Firmware< 1.1.4.4
CiscoSg220-28 Firmware< 1.1.4.4
CiscoSg220-28mp Firmware< 1.1.4.4
CiscoSg220-50 Firmware< 1.1.4.4
CiscoSg220-50p Firmware< 1.1.4.4
CiscoSg220-52 Firmware< 1.1.4.4

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2019-1912?
A vulnerability in the web management interface of Cisco Small Business 220 Series Smart Switches could allow an unauthenticated, remote attacker to upload arbitrary files. The vulnerability is due to incomplete authorization checks in the web management interface. An attacker could exploit this vulnerability by sending a malicious request to certain parts of the web management interface. Depending on the configuration of the affected switch, the malicious request must be sent via HTTP or HTTPS. A successful exploit could allow the attacker to modify the configuration of an affected device or to inject a reverse shell. This vulnerability affects Cisco Small Business 220 Series Smart Switches running firmware versions prior to 1.1.4.4 with the web management interface enabled. The web management interface is enabled via both HTTP and HTTPS by default.
How severe is CVE-2019-1912?
CVE-2019-1912 has a CVSS score of 9.1/10 (CRITICAL severity). The EPSS model estimates a 17.04% probability of exploitation in the next 30 days.
How do I fix CVE-2019-1912?
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-2019-1912?

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

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Source: NVD / NIST