CVE-2013-6634 Auth bypass in n/a
Remote attackers can hijack web sessions via session fixation in Chrome's one-click sign-in helper, requiring user interaction to trigger improper sync.
- 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
- Available
What is CVE-2013-6634?
CVE-2013-6634 is a medium-severity authentication bypass vulnerability in Google Chrome, published on 7 Dec 2013. 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
The OneClickSigninHelper::ShowInfoBarIfPossible function in browser/ui/sync/one_click_signin_helper.cc in Google Chrome before 31.0.1650.63 uses an incorrect URL during realm validation, which allows remote attackers to conduct session fixation attacks and hijack web sessions by triggering improper sync after a 302 (aka Found) HTTP status code.
Weakness: CWE-287
Which versions are affected by CVE-2013-6634?
It affects 1 product.
Products include Google Chrome.
How do I fix CVE-2013-6634?
Upgrade to a fixed version.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2013-6634 being exploited?
There is no known exploitation of CVE-2013-6634 in the wild and no public exploit code.
Other vulnerabilities in Google Chrome
Sources
Also known as GHSA-74gf-43jg-q6vr.