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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2019.4350.2 Privilege escalation and DoS in FortiClient for Linux through local IPC socket 30 January 2020 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Fortinet FortiClient Publisher: FortiGuard Operating System: Linux variants Impact/Access: Root Compromise -- Existing Account Denial of Service -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2019-17652 CVE-2019-16155 CVE-2019-16152 CVE-2019-15711 Original Bulletin: https://fortiguard.com/psirt/FG-IR-19-238 Revision History: January 30 2020: Vendor updated advisory 'CVE-2019-16155 through GUI addressed in 6.2.3' November 18 2019: Initial Release - --------------------------BEGIN INCLUDED TEXT-------------------- Privilege escalation and DoS in FortiClient for Linux through local IPC socket IR Number : FG-IR-19-238 Date : Nov 15, 2019 Risk : 3/5 Impact : Privilege Escalation, System Command Injection, Denial of Service CVE ID : CVE-2019-15711, CVE-2019-16152, CVE-2019-16155, CVE-2019-17652 CVE ID : CVE-2019-15711, CVE-2019-16152, CVE-2019-16155, CVE-2019-17652 Summary A privilege escalation vulnerability in FortiClient for Linux may allow a user with low privilege to run root system commands, overwrite system files or cause FortiClient processes to crash via injecting specially crafted client requests in the IPC socket of the FortiClient process. The following four CVE identifiers were assigned to these vulnerabilities based on different attack vectors: CVE-2019-15711 - System command injection through IPC socket by export logs CVE-2019-16152 - DoS through IPC socket by malformat nanomsg CVE-2019-16155 - Privilege escalation through IPC socket or GUI by backup file CVE-2019-17652 - DoS through IPC socket by argv through nanomsg Impact Privilege Escalation, System Command Injection, Denial of Service Affected Products CVE-2019-15711 - FortiClient for Linux 6.2.1 and below CVE-2019-16152 - FortiClient for Linux 6.2.1 and below CVE-2019-16155 - FortiClient for Linux 6.2.1 and below (IPC socket) CVE-2019-16155 - FortiClient for Linux 6.2.2 and below (GUI) CVE-2019-17652 - FortiClient for Linux 6.2.1 and below Solutions CVE-2019-15711 - Upgrade to FortiClient for Linux 6.2.2 CVE-2019-16152 - Upgrade to FortiClient for Linux 6.2.2 CVE-2019-16155 - Upgrade to FortiClient for Linux 6.2.2 (IPC socket) CVE-2019-16155 - Upgrade to FortiClient for Linux 6.2.3 (GUI) CVE-2019-17652 - Upgrade to FortiClient for Linux 6.2.2 Fortinet is not aware of any public code attempting to exploit these vulnerabilities. Revision History: 2019-11-05 Initial version 2020-01-27 CVE-2019-16155 through GUI addressed in 6.2.3 Acknowledgement Fortinet is pleased to thank "Cees Elzinga from Langkjaer Cyber Defence" for reporting this vulnerability under responsible disclosure. - --------------------------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 auscert@auscert.org.au 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. 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Previous advisories and external security bulletins can be retrieved from: https://www.auscert.org.au/bulletins/ =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au 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 iQIVAwUBXjIoQGaOgq3Tt24GAQiY1xAAvwN4Y+5mXk/g3eUITj2xVEt2eMUEm93+ 75IklMGP2v3K1pkgGEbPB/Zs7a1Lzz1ZMOGR1wlLeN+LU5Z9DzUx7GdNCYqn+iZL 52cTWJymvdqA8Y/rIBrJVOGDZbl+vdw77e7/3RIWpP5GgJYykTBCYf2cvS4VEhG7 bCdFkhNYXivF04onfFv5XHEbBxEwZidirooiaN5PpfU9D4/S4Lnd2AJFxns8ZM7m h253VOLeTTZNcpsGUU4Kec6Y9/E0z5JefQxmf1eqnpify0FSEkelIynLDSVUYKoV jGqIipOeIkjfGZ1arbZhB3pEahMIT36D8PJJecD+KPkpa/4NlsUjrjLBTn5ukJsR p2WDdhusyrv/gsluTeaoZjUQSpO8I0P5JCDOcPGxCc9683jjQ7pOMukawlNVuwOY 8/JDQh5zuqBt0t6RxwPxAwRmay84fEBEWUxZ7NH5xVV+oilu4nUym/R/Ixu2Zs9l i9Z75ipbZipt6647l3xNNBqQdk49ZZoPAD0TBxxzVpv1r47UMSrlrv6MvKmT28qo /ZZR73eTuGg1J/ZLuroJY5zbiDjdjzdGDNSheOuiZB23SR/0K5+oI4Lw3mp6Rxwp RDAR3H8kWleG2MV23t1Lj4ouJ4Ei8Z1QMO2vo0mmN8rltQpNQfv23Ig/TUNYcPsm Z7KG4C34cAs= =fBzh -----END PGP SIGNATURE-----