CVE-2017-8495
Microsoft Windows Kerberos SNAME Security Feature Bypass Vulnerability
Description
Microsoft Windows 7 SP1, Windows Server 2008 SP2 and R2 SP1, Windows 8.1 and Windows RT 8.1, Windows Server 2012 and R2, Windows 10 Gold, 1511, 1607, and 1703, and Windows Server 2016 allows an attacker to bypass Extended Protection for Authentication when Kerberos fails to prevent tampering with the SNAME field during ticket exchange, aka "Kerberos SNAME Security Feature Bypass Vulnerability" or Orpheus' Lyre.
INFO
Published Date :
July 11, 2017, 9:29 p.m.
Last Modified :
July 17, 2017, 3:06 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.9
Exploitability Score :
1.6
Affected Products
The following products are affected by CVE-2017-8495
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2017-8495.
| URL | Resource |
|---|---|
| http://www.securityfocus.com/bid/99424 | Third Party Advisory VDB Entry |
| http://www.securitytracker.com/id/1038862 | Third Party Advisory VDB Entry |
| https://portal.msrc.microsoft.com/en-us/security-guidance/advisory/CVE-2017-8495 | Patch Vendor Advisory |
| https://www.orpheus-lyre.info/ | Third Party Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2017-8495 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2017-8495 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Initial Analysis by [email protected]
Jul. 17, 2017
Action Type Old Value New Value Added CVSS V2 (AV:N/AC:M/Au:S/C:P/I:P/A:P) Added CVSS V3 AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://www.orpheus-lyre.info/ No Types Assigned https://www.orpheus-lyre.info/ Third Party Advisory Changed Reference Type http://www.securitytracker.com/id/1038862 No Types Assigned http://www.securitytracker.com/id/1038862 Third Party Advisory, VDB Entry Changed Reference Type http://www.securityfocus.com/bid/99424 No Types Assigned http://www.securityfocus.com/bid/99424 Third Party Advisory, VDB Entry Changed Reference Type https://portal.msrc.microsoft.com/en-us/security-guidance/advisory/CVE-2017-8495 No Types Assigned https://portal.msrc.microsoft.com/en-us/security-guidance/advisory/CVE-2017-8495 Patch, Vendor Advisory Added CWE CWE-287 Added CPE Configuration OR *cpe:2.3:o:microsoft:windows_10:-:*:*:*:*:*:*:* *cpe:2.3:o:microsoft:windows_10:1511:*:*:*:*:*:*:* *cpe:2.3:o:microsoft:windows_10:1607:*:*:*:*:*:*:* *cpe:2.3:o:microsoft:windows_10:1703:*:*:*:*:*:*:* *cpe:2.3:o:microsoft:windows_7:*:sp1:*:*:*:*:*:* *cpe:2.3:o:microsoft:windows_8.1:*:*:*:*:*:*:*:* *cpe:2.3:o:microsoft:windows_rt_8.1:*:*:*:*:*:*:*:* *cpe:2.3:o:microsoft:windows_server_2008:*:sp2:*:*:*:*:*:* *cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:*:* *cpe:2.3:o:microsoft:windows_server_2012:*:*:*:*:*:*:*:* *cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:* *cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Jul. 17, 2017
Action Type Old Value New Value Changed Description Microsoft Windows 7 SP1, Windows Server 2008 SP2 and R2 SP1, Windows 8.1 and Windows RT 8.1, Windows Server 2012 and R2, Windows 10 Gold, 1511, 1607, and 1703, and Windows Server 2016 allows an attacker to bypass Extended Protection for Authentication when Kerberos fails to prevent tampering with the SNAME field during ticket exchange, aka "Kerberos SNAME Security Feature Bypass Vulnerability". Microsoft Windows 7 SP1, Windows Server 2008 SP2 and R2 SP1, Windows 8.1 and Windows RT 8.1, Windows Server 2012 and R2, Windows 10 Gold, 1511, 1607, and 1703, and Windows Server 2016 allows an attacker to bypass Extended Protection for Authentication when Kerberos fails to prevent tampering with the SNAME field during ticket exchange, aka "Kerberos SNAME Security Feature Bypass Vulnerability" or Orpheus' Lyre. Added Reference https://www.orpheus-lyre.info/ [No Types Assigned] -
CVE Modified by [email protected]
Jul. 13, 2017
Action Type Old Value New Value Added Reference http://www.securitytracker.com/id/1038862 [No Types Assigned] Added Reference http://www.securityfocus.com/bid/99424 [No Types Assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2017-8495 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2017-8495
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.30 }} -0.12%
score
0.70161
percentile