National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2017-17672 Detail

Current Description

In vBulletin through 5.3.x, there is an unauthenticated deserialization vulnerability that leads to arbitrary file deletion and, under certain circumstances, code execution, because of unsafe usage of PHP's unserialize() in vB_Library_Template's cacheTemplates() function, which is a publicly exposed API. This is exploited with the templateidlist parameter to ajax/api/template/cacheTemplates.

Source:  MITRE
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 9.8 CRITICAL
Vector: AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H (V3 legend)
Impact Score: 5.9
Exploitability Score: 3.9


Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

CVSS v2.0 Severity and Metrics:

Base Score: 7.5 HIGH
Vector: (AV:N/AC:L/Au:N/C:P/I:P/A:P) (V2 legend)
Impact Subscore: 6.4
Exploitability Subscore: 10.0


Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): Partial
Integrity (I): Partial
Availability (A): Partial
Additional Information:
Allows unauthorized disclosure of information
Allows unauthorized modification
Allows disruption of service

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving NIST webspace. We have provided these links to other web sites because they may have information that would be of interest to you. No inferences should be drawn on account of other sites being referenced, or not, from this page. There may be other web sites that are more appropriate for your purpose. NIST does not necessarily endorse the views expressed, or concur with the facts presented on these sites. Further, NIST does not endorse any commercial products that may be mentioned on these sites. Please address comments about this page to nvd@nist.gov.

Hyperlink Resource
https://blogs.securiteam.com/index.php/archives/3573 Exploit Third Party Advisory
https://www.exploit-db.com/exploits/43362/ Exploit Third Party Advisory VDB Entry

Technical Details

Vulnerability Type (View All)

  • Deserialization of Untrusted Data (CWE-502)

Known Affected Software Configurations Switch to CPE 2.3

Configuration 1 ( hide )
 cpe:/a:vbulletin:vbulletin:5.0.0:beta_11
     Show Matching CPE(s)
 cpe:/a:vbulletin:vbulletin:5.0.0:beta_28
     Show Matching CPE(s)
 cpe:/a:vbulletin:vbulletin
     Show Matching CPE(s)
From (including)
5.0.1
Up to (including)
5.3.3


Change History

2 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2017-17672
NVD Published Date:
12/13/2017
NVD Last Modified:
01/02/2018