CVE-2016-2049 Auth bypass in n/a
Attackers can hijack user authentication in the JanRain PHP OpenID library by spoofing the HTTP Host header to bypass realm checks.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2016-2049?
CVE-2016-2049 is a high-severity authentication bypass vulnerability in n/a, published on 1 Feb 2016. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official 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.
Weakness: CWE-284
Which versions are affected by CVE-2016-2049?
It affects 1 product.
Products include Janrain Php-Openid.
How do I fix CVE-2016-2049?
No fix has been published for CVE-2016-2049 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2016-2049 being exploited?
There is no known exploitation of CVE-2016-2049 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-w7j5-jxx6-p7j4, UBUNTU-CVE-2016-2049.