CVE-2013-4522

Public Exploit

Description

lib/filelib.php in Moodle through 2.2.11, 2.3.x before 2.3.10, 2.4.x before 2.4.7, and 2.5.x before 2.5.3 does not send "Cache-Control: private" HTTP headers, which allows remote attackers to obtain sensitive information by requesting a file that had been previously retrieved by a caching proxy server.

Category

5.0
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 0.28%
Vendor Advisory moodle.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-38743 patch exploit
https://moodle.org/mod/forum/discuss.php?d=244479 vendor advisory
http://openwall.com/lists/oss-security/2013/11/25/1 mailing list

Frequently Asked Questions

What is the severity of CVE-2013-4522?
CVE-2013-4522 has been scored as a medium severity vulnerability.
How to fix CVE-2013-4522?
To fix CVE-2013-4522, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2013-4522 being actively exploited in the wild?
It is possible that CVE-2013-4522 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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