CVE-2017-17671

vBulletin through 5.3.x on Windows allows remote PHP code execution because a require_once call is reachable with an unauthenticated request that can include directory traversal sequences to specify an arbitrary pathname, and because ../ traversal is blocked but ..\ traversal is not blocked. For example, an attacker can make an invalid HTTP request containing PHP code, and then make an index.php?routestring= request with enough instances of ".." to reach an Apache HTTP Server log file.

CVSS v3 9.8 CRITICAL
CVSS v2.0 7.5 HIGH

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.5^/10

CVSS v2.0 : HIGH

Vector : AV:N/AC:L/Au:N/C:P/I:P/A:P

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://blogs.securiteam.com/index.php/archives/3569	Exploit Third Party Advisory
https://blogs.securiteam.com/index.php/archives/3569	Exploit Third Party Advisory

Configurations

Configuration 1 (hide)

AND

OR	cpe:2.3:a:vbulletin:vbulletin::::::::
	cpe:2.3:a:vbulletin:vbulletin:5.0.0:beta_11::::::
	cpe:2.3:a:vbulletin:vbulletin:5.0.0:beta_28::::::

cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*

History

21 Nov 2024, 03:18

Type	Values Removed	Values Added
References	~~() https://blogs.securiteam.com/index.php/archives/3569 - Exploit, Third Party Advisory~~	() https://blogs.securiteam.com/index.php/archives/3569 - Exploit, Third Party Advisory

Information

Published : 2017-12-14 00:29

Updated : 2025-04-20 01:37

NVD link : CVE-2017-17671

Mitre link : CVE-2017-17671

CVE.ORG link : CVE-2017-17671

JSON object : View

Products Affected

vbulletin

vbulletin

microsoft

windows

CWE

CWE-22

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

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