CVE-2012-4867

published 2012-09-06

CVE-2012-4867: Directory traversal vulnerability in modules/com_vtiger_workflow/sortfieldsjson.php in vtiger CRM 5.1.0 allows remote attackers to read arbitrary files via a…

Priority P2 67 medium 5 CVSS 2.0

AV N AC L Au N C P I N A N

ITW EXPLOIT VulnCheck KEV

Directory traversal vulnerability in modules/com_vtiger_workflow/sortfieldsjson.php in vtiger CRM 5.1.0 allows remote attackers to read arbitrary files via a .. (dot dot) in the module_name parameter.

Affected

1 ranges

Vendor	Product	Version range	Fixed in
vtiger	vtiger_crm	—	—

Detection & IOCs extracted from sources · hover to see the quote

path modules/com_vtiger_workflow/sortfieldsjson.php↗

url https://localhost/vtigercrm/modules/com_vtiger_workflow/sortfieldsjson.php?module_name=../../../../../../../../etc/passwd%00↗

filename sortfieldsjson.php↗

• → Detect directory traversal attempts targeting the module_name parameter in sortfieldsjson.php; look for '../' sequences or URL-encoded equivalents (%2e%2e%2f) in GET requests to this endpoint. ↗
• → Monitor HTTP requests to /modules/com_vtiger_workflow/sortfieldsjson.php containing null byte (%00) in the module_name parameter, which is used to terminate the filename string and bypass extension checks. ↗
• → Alert on unauthenticated GET requests to sortfieldsjson.php with module_name values containing multiple '../' traversal sequences, especially targeting sensitive OS files such as /etc/passwd. ↗

• · The exploit was tested specifically on CentOS 6; traversal depth (number of '../' sequences) may need adjustment depending on the web root installation path on other OS/distributions. ↗
• · The null byte (%00) termination technique is only effective on PHP installations where the underlying C runtime respects null-terminated strings for file operations; this is patched in PHP 5.3.4+. ↗

CVSS provenance

nvd v2.0 5.0 MEDIUM AV:N/AC:L/Au:N/C:P/I:N/A:N

vulncheck 5.0 MEDIUM

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