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CVE-2019-13927

MEDIUMCVSS 5.3/10EPSS 1.68%

Last modified

CVE-2019-13927 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. A vulnerability has been identified in Desigo PX automation controllers PXC00-E.D, PXC50-E.D, PXC100-E.D, PXC200-E.D with Desigo PX Web modules PXA40-W0, PXA40-W1, PXA40-W2 (All firmware versions < V6.00.320), Desigo PX automation controllers PXC00-U, PXC64-U, PXC128-U with Desigo PX Web modules PXA30-W0, PXA30-W1, PXA30-W2 (All firmware versions < V6.00.320), Desigo PX automation controllers PXC22.1-E.D, PXC36-E.D, PXC36.1-E.D with activated web server (All firmware versions < V6.00.320). The device contains a vulnerability that could allow an attacker to cause a denial of service condition on the device's web server by sending a specially crafted HTTP message to the web server port (tcp/80). EPSS estimates a 1.68% chance of exploitation in the next 30 days.

Description

A vulnerability has been identified in Desigo PX automation controllers PXC00-E.D, PXC50-E.D, PXC100-E.D, PXC200-E.D with Desigo PX Web modules PXA40-W0, PXA40-W1, PXA40-W2 (All firmware versions < V6.00.320), Desigo PX automation controllers PXC00-U, PXC64-U, PXC128-U with Desigo PX Web modules PXA30-W0, PXA30-W1, PXA30-W2 (All firmware versions < V6.00.320), Desigo PX automation controllers PXC22.1-E.D, PXC36-E.D, PXC36.1-E.D with activated web server (All firmware versions < V6.00.320). The device contains a vulnerability that could allow an attacker to cause a denial of service condition on the device's web server by sending a specially crafted HTTP message to the web server port (tcp/80). The security vulnerability could be exploited by an attacker with network access to an affected device. Successful exploitation requires no system privileges and no user interaction. An attacker could use the vulnerability to compromise the availability of the device's web service. While the device itself stays operational, the web server responds with HTTP status code 404 (Not found) to any further request. A reboot is required to recover the web interface. At the time of advisory publication no public exploitation of this security vulnerability was known.

Metrics

CVSS 3.1
5.3/10

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

EPSS Probability
1.68%

73.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
SiemensPxc00-E.D Firmware< 6.00.320
SiemensPxc50-E.D Firmware< 6.00.320
SiemensPxc100-E.D Firmware< 6.00.320
SiemensPxc200-E.D Firmware< 6.00.320
SiemensPxa40-W0 Firmware< 6.00.320
SiemensPxa40-W1 Firmware< 6.00.320
SiemensPxa40-W2 Firmware< 6.00.320
SiemensPxc00-U Firmware< 6.00.320
SiemensPxc64-U Firmware< 6.00.320
SiemensPxc128-U Firmware< 6.00.320
SiemensPxa30-W0 Firmware< 6.00.320
SiemensPxa30-W1 Firmware< 6.00.320
SiemensPxa30-W2 Firmware< 6.00.320
SiemensPxc22.1-E.D Firmware< 6.00.320
SiemensPxc36-E.D Firmware< 6.00.320
SiemensPxc36.1-E.D Firmware< 6.00.320

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2019-13927?
A vulnerability has been identified in Desigo PX automation controllers PXC00-E.D, PXC50-E.D, PXC100-E.D, PXC200-E.D with Desigo PX Web modules PXA40-W0, PXA40-W1, PXA40-W2 (All firmware versions < V6.00.320), Desigo PX automation controllers PXC00-U, PXC64-U, PXC128-U with Desigo PX Web modules PXA30-W0, PXA30-W1, PXA30-W2 (All firmware versions < V6.00.320), Desigo PX automation controllers PXC22.1-E.D, PXC36-E.D, PXC36.1-E.D with activated web server (All firmware versions < V6.00.320). The device contains a vulnerability that could allow an attacker to cause a denial of service condition on the device's web server by sending a specially crafted HTTP message to the web server port (tcp/80). The security vulnerability could be exploited by an attacker with network access to an affected device. Successful exploitation requires no system privileges and no user interaction. An attacker could use the vulnerability to compromise the availability of the device's web service. While the device itself stays operational, the web server responds with HTTP status code 404 (Not found) to any further request. A reboot is required to recover the web interface. At the time of advisory publication no public exploitation of this security vulnerability was known.
How severe is CVE-2019-13927?
CVE-2019-13927 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 1.68% probability of exploitation in the next 30 days.
How do I fix CVE-2019-13927?
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-2019-13927?

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Source: NVD / NIST