28 July 2015
Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2015.1963 XSS vulnerability in FortiGate DHCP monitor WebUI page 28 July 2015 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: FortiOS Publisher: FortiGuard Operating System: Network Appliance Impact/Access: Cross-site Scripting -- Remote with User Interaction Resolution: Patch/Upgrade CVE Names: CVE-2015-3626 Original Bulletin: http://www.fortiguard.com/advisory/FG-IR-15-018/ - --------------------------BEGIN INCLUDED TEXT-------------------- XSS vulnerability in FortiGate DHCP monitor WebUI page Risk 3 Medium Date Jul 24 2015 Impact Cross-Site Scripting (persistent) CVE ID CVE-2015-3626 Fixed In Firmware 5.2.4 The Web User Interface of FortiOS 5.2.3 and below is vulnerable to a persistent cross-site scripting vulnerability in the DHCP monitor page. Impact Hostnames of DHCP clients are reflected in the DHCP Monitor page without proper sanitization. Therefore a specifically crafted hostname provided by a malicious DHCP client could yield code execution in the security context of logged in users' browsers, as they view the DHCP Monitor page. The situation will persist until the malicious DHCP client lease expires. Affected Products FortiOS 5.2.3 and lower. Solutions Upgrade to FortiOS 5.2.4. As a workaround the DHCP server can be disabled at the interface level: System > Network > Interfaces > Edit "interface name" > Untick the "DHCP server" checkbox. Acknowledgement Thanks to Ziv Kamir. - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to email@example.com and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AusCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: http://www.auscert.org.au/render.html?cid=1980 =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: firstname.lastname@example.org Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBVbbqVH6ZAP0PgtI9AQKu+w//XUBjwSK+2QBDVnmHdv64DQe9Et9To31W uE9Hg1LGCnAGUpZUk0f2FfETfuVbqILe8jJepApRD2BuO2uepSVA1G5NUNxWWCB8 /Fs/puWKLUE2546GRASCnBah0z3IWKWm5AkGXuxsCQAKByrTeA/rNutY5hvEuPQI qz1zE2m0PdmKP8YXsCA/Du6F+oeB0HVns/W2Plx/JoZAQ7s/emzhUi3hcvDdWcj7 hPSvYA4jtcwoRCKcX+rp2uG5Gd1au9b1fdl9fkpJahi1d8DBUvZrDlWDh/PlL4ER y0h4UpJiMxok0YkKD4QkduZRipSELrOiXdiF2tqWcdUIh8UIlEqbkJYSSYN3yUtn 6LIIiQ4Hc1m9Wv6m/vbv4jHFW6vbeqY5ijoL2x7e2xr1wZSI8NMkkAvsWhcl7k0o NmkoCazHJoPhVQ31eII6fBAxkOVIdwah3+rPqd8vGwJVWOkHBcuJX8B92oOwJXs7 ngj20m6T0/xrFvX/So4mAugbA36Z2rXxaMmo9m7g3EA5u3pNhx20dvPeqkhGuSJo DEPEP0/xM/rx798lSHePV7b8U7Z0STABHFjORmL73TjdgwEXCGFcdZI4Cw3MJHkd 4PLkIhkbckJZithLfD+WdKp2l2cRrV0Q7e+879C83x7xyGEWwJIfwk/XZsPGJZgb wRDnCJa9Rc8= =K9DI -----END PGP SIGNATURE-----