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CVE-2015-5352

UnknownEPSS 5.45%

Last modified

CVE-2015-5352 is a vulnerability of currently unknown severity. The x11_open_helper function in channels.c in ssh in OpenSSH before 6.9, when ForwardX11Trusted mode is not used, lacks a check of the refusal deadline for X connections, which makes it easier for remote attackers to bypass intended access restrictions via a connection outside of the permitted time window.. EPSS estimates a 5.45% chance of exploitation in the next 30 days.

Description

The x11_open_helper function in channels.c in ssh in OpenSSH before 6.9, when ForwardX11Trusted mode is not used, lacks a check of the refusal deadline for X connections, which makes it easier for remote attackers to bypass intended access restrictions via a connection outside of the permitted time window.

Metrics

EPSS Probability
5.45%

91.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
OpenbsdOpenssh<= 6.8

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2015-5352?
The x11_open_helper function in channels.c in ssh in OpenSSH before 6.9, when ForwardX11Trusted mode is not used, lacks a check of the refusal deadline for X connections, which makes it easier for remote attackers to bypass intended access restrictions via a connection outside of the permitted time window.
How severe is CVE-2015-5352?
Severity scoring for CVE-2015-5352 is pending analysis. The EPSS model estimates a 5.45% probability of exploitation in the next 30 days.
How do I fix CVE-2015-5352?
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.

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Source: NVD / NIST