CVE-2017-12871

Description

The aesEncrypt method in lib/SimpleSAML/Utils/Crypto.php in SimpleSAMLphp 1.14.x through 1.14.11 makes it easier for context-dependent attackers to bypass the encryption protection mechanism by leveraging use of the first 16 bytes of the secret key as the initialization vector (IV).

Category

5.9
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.08%
Third-Party Advisory github.com Third-Party Advisory simplesamlphp.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://simplesamlphp.org/security/201703-02 issue tracking third party advisory patch
https://github.com/simplesamlphp/simplesamlphp/commit/77df6a932d46daa35e364925eb73a175010dc904 issue tracking third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2017-12871?
CVE-2017-12871 has been scored as a medium severity vulnerability.
How to fix CVE-2017-12871?
To fix CVE-2017-12871, 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-2017-12871 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2017-12871 is being actively exploited. 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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