Auth bypass in Microsoft Windows 10
CVE-2018-0886
The Credential Security Support Provider protocol (CredSSP) in Microsoft Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8.1 and RT 8.1, Windows Server 2012 and R2, Windows 10 Gold, 1511, 1607, 1703, and 1709 Windows Server 2016 and Windows Server, version 1709 allows a remote code execution vulnerability due to how CredSSP validates request during the authentication process, aka "CredSSP Remote Code Execution Vulnerability".
Vulnerability class: Broken Authentication
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.0 (High). Vector: CVSS:3.0/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.820 (99.7th percentile), scored .
High probability of exploitation in the next 30 days — patch promptly. 100th percentile — 99.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.786 · newest: 0.820 · change: +0.033
Affected products
- Microsoft Windows 10 — versions 1511, 1607, 1703
- Microsoft Windows 7
- Microsoft Windows 8.1
- Microsoft Windows Rt 8.1
- Microsoft Windows Server 2008 — versions r2
- Microsoft Windows Server 2012 — versions r2
- Microsoft Windows Server 2016 — versions 1709, 1803
- Microsoft Corporation Windows — versions Microsoft Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8.1 and RT 8.1, Windows Server 2012 and R2, Windows 10 Gold, 1511, 1607, 1703, and 1709 Windows Server 2016 and Windows Server, version 1709
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.securitytracker.com/id/1040506 (VDB Entry, Third Party Advisory, vdb-entry)
- www.securityfocus.com/bid/103265 (VDB Entry, Third Party Advisory, vdb-entry)
- ics-cert.us-cert.gov/advisories/ICSA-18-198-03 (US Government Resource, Third Party Advisory)
- portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0886 (Patch, Vendor Advisory)
- blog.preempt.com/security-advisory-credssp (Exploit, Third Party Advisory)
- www.exploit-db.com/exploits/44453/ (Exploit, VDB Entry, Third Party Advisory, exploit)
- github.com/preempt/credssp (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2018-0886?
- CVE-2018-0886 is a high-severity vulnerability in Microsoft Windows 10, classified under Improper Authentication. CVSS score: 7.0/10. Published 2018-03-14.
- How severe is CVE-2018-0886?
- High severity. CVSS v3 base score is 7.0 out of 10.
- Is CVE-2018-0886 known to be exploited?
- 27 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.