Snyk has a published code exploit for this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applicationsUpgrade RHEL:7
jbcs-httpd24-httpd-manual
to version 0:2.4.23-125.jbcs.el7 or higher.
This issue was patched in RHSA-2017:3476
.
Note: Versions mentioned in the description apply only to the upstream jbcs-httpd24-httpd-manual
package and not the jbcs-httpd24-httpd-manual
package as distributed by RHEL
.
See How to fix?
for RHEL:7
relevant fixed versions and status.
Apache httpd allows remote attackers to read secret data from process memory if the Limit directive can be set in a user's .htaccess file, or if httpd.conf has certain misconfigurations, aka Optionsbleed. This affects the Apache HTTP Server through 2.2.34 and 2.4.x through 2.4.27. The attacker sends an unauthenticated OPTIONS HTTP request when attempting to read secret data. This is a use-after-free issue and thus secret data is not always sent, and the specific data depends on many factors including configuration. Exploitation with .htaccess can be blocked with a patch to the ap_limit_section function in server/core.c.