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CVE-2016-2049

UnknownEPSS 2.17%

Last modified

CVE-2016-2049 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 2.17% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability
2.17%

80.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
JanrainPhp-OpenidAll versions

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2016-2049?
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.
How severe is CVE-2016-2049?
Severity scoring for CVE-2016-2049 is pending analysis. The EPSS model estimates a 2.17% probability of exploitation in the next 30 days.
How do I fix CVE-2016-2049?
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-2016-2049?

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

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Source: NVD / NIST