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CVE-2019-14771

UnknownEPSS 2.60%

Last modified

CVE-2019-14771 is a vulnerability of currently unknown severity. Backdrop CMS 1.12.x before 1.12.8 and 1.13.x before 1.13.3 allows the upload of entire-site configuration archives through the user interface or command line. It does not sufficiently check uploaded archives for invalid data, potentially allowing non-configuration scripts to be uploaded to the server. EPSS estimates a 2.60% chance of exploitation in the next 30 days.

Description

Backdrop CMS 1.12.x before 1.12.8 and 1.13.x before 1.13.3 allows the upload of entire-site configuration archives through the user interface or command line. It does not sufficiently check uploaded archives for invalid data, potentially allowing non-configuration scripts to be uploaded to the server. (This attack is mitigated by the attacker needing the "Synchronize, import, and export configuration" permission, a permission that only trusted administrators should be given. Other preventative measures in Backdrop CMS prevent the execution of PHP scripts, so another server-side scripting language must be accessible on the server to execute code.) Note: This has been disputed by multiple 3rd parties due to advanced permissions that are needed to exploit.

Metrics

EPSS Probability
2.60%

83.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
BackdropcmsBackdrop Cms>= 1.12.0, < 1.12.8
BackdropcmsBackdrop Cms>= 1.13.0, < 1.13.3

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2019-14771?
Backdrop CMS 1.12.x before 1.12.8 and 1.13.x before 1.13.3 allows the upload of entire-site configuration archives through the user interface or command line. It does not sufficiently check uploaded archives for invalid data, potentially allowing non-configuration scripts to be uploaded to the server. (This attack is mitigated by the attacker needing the "Synchronize, import, and export configuration" permission, a permission that only trusted administrators should be given. Other preventative measures in Backdrop CMS prevent the execution of PHP scripts, so another server-side scripting language must be accessible on the server to execute code.) Note: This has been disputed by multiple 3rd parties due to advanced permissions that are needed to exploit.
How severe is CVE-2019-14771?
Severity scoring for CVE-2019-14771 is pending analysis. The EPSS model estimates a 2.60% probability of exploitation in the next 30 days.
How do I fix CVE-2019-14771?
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-2019-14771?

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

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Source: NVD / NIST