CVE-2016-2049

Description

examples/consumer/common.php in JanRain PHP OpenID library (aka php-openid) improperly checks the openid.realm parameter against the SERVER_NAME element in the SERVER superglobal array, which might allow remote attackers to hijack the authentication of arbitrary users via vectors involving a crafted HTTP Host header.

Category

8.8
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.40%
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.openwall.com/lists/oss-security/2016/01/24/5 mailing list
http://www.openwall.com/lists/oss-security/2016/01/24/2 mailing list

Frequently Asked Questions

What is the severity of CVE-2016-2049?
CVE-2016-2049 has been scored as a high severity vulnerability.
How to fix CVE-2016-2049?
To fix CVE-2016-2049, 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-2016-2049 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2016-2049 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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