CVE-2015-6112
What it is
SChannel in Microsoft Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows 8.1, Windows Server 2012 Gold and R2, and Windows RT Gold and 8.1 lacks the required extended master-secret binding support to ensure that a server's X.509 certificate is the same during renegotiation as it was before renegotiation, which allows man-in-the-middle attackers to obtain sensitive information or modify TLS session data via a "triple handshake attack," aka "Schannel TLS Triple Handshake Vulnerability."
At a glance
- Exploitability
- Can be exploited over the network without logging in. Limited direct impact.
- Exploit odds
- 2.8% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 2.8% in the next 30 days (EPSS).
- Severity: 5.8 MEDIUM (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 2.8% · EPSS, next 30 days
- Weakness
- CWE-20 · Improper input validation
- Record status
- Modified
Affected
- Microsoft Windows 7
- Microsoft Windows 8
- Microsoft Windows 8.1
- Microsoft Windows Rt
- Microsoft Windows Rt 8.1
- Microsoft Windows Server 2008
- Microsoft Windows Server 2008 r2
- Microsoft Windows Server 2012
Attack profile CVSS 2.0 · 5.8
- Attack vector
- Network
- Complexity
- Medium
- Authentication
- None
- Confidentiality
- Partial
- Integrity
- Partial
- Availability
- None
Raw vector
AV:N/AC:M/Au:N/C:P/I:P/A:N
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2015-6112.md and follow it. Check whether this project is affected by CVE-2015-6112. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2015/ms15-121
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2015/ms15-121