CVE-2017-3305 Auth bypass in MySQL Server
A flaw in MySQL Server allows attackers to hijack user authentication via man-in-the-middle attacks, leading to unauthorized data access.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2017-3305?
CVE-2017-3305 is a medium-severity authentication bypass vulnerability in Debian Debian Linux, published on 24 Apr 2017. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Vulnerability in the MySQL Server component of Oracle MySQL (subcomponent: Server: C API). Supported versions that are affected are 5.5.55 and earlier and 5.6.35 and earlier. Difficult to exploit vulnerability allows low privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all MySQL Server accessible data. CVSS 3.0 Base Score 5.3 (Confidentiality impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N). NOTE: the previous information is from the April 2017 CPU. Oracle has not commented on third-party claims that this issue allows man-in-the-middle attackers to hijack the authentication of users by leveraging incorrect ordering of security parameter verification in a client, aka, "The Riddle".
Weakness: CWE-319
Which versions are affected by CVE-2017-3305?
It affects 2 products.
Products include Debian Debian Linux, Oracle Mysql.
How do I fix CVE-2017-3305?
Apply the vendor's patch.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2017-3305 being exploited?
There is no known exploitation of CVE-2017-3305 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as GHSA-7568-gxg7-r8h9, UBUNTU-CVE-2017-3305.