Information disclosure vulnerabilities in Fortinet FortiOS
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 3 |
| CVE-ID | CVE-2018-13376 CVE-2018-13374 CVE-2018-13366 |
| CWE-ID | CWE-401 CWE-200 |
| Exploitation vector | Network |
| Public exploit | Vulnerability #2 is being exploited in the wild. |
| Vulnerable software Subscribe |
FortiOS Operating systems & Components / Operating system |
| Vendor | Fortinet, Inc |
Security Bulletin
This security bulletin contains information about 3 vulnerabilities.
1) Information disclosure
EUVDB-ID: #VU16163
Risk: Low
CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2018-13376
CWE-ID:
CWE-401 - Missing release of memory after effective lifetime
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to obtain potentially sensitive information.
The vulnerability exists due to uninitialized memory buffer leak exists in FortiOS web proxy's disclaimer response web pages. A remote attacker can trigger memory leak and access sensitive data be displayed in the HTTP response.
MitigationThe vulnerability has been fixed in the versions 5.4.8, 5.6.4 and 6.0.0.
Vulnerable software versionsFortiOS: 5.2.12 - 5.6.3
External linkshttp://fortiguard.com/psirt/FG-IR-18-325
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
2) Information disclosure
EUVDB-ID: #VU16172
Risk: Low
CVSSv3.1: 4.2 [CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N/E:H/RL:O/RC:C]
CVE-ID: CVE-2018-13374
CWE-ID:
CWE-200 - Information exposure
Exploit availability: Yes
DescriptionThe vulnerability allows a local attacker with admin privileges to obtain potentially sensitive information.
The weakness exists due to information exposure. A Fortigate's read-only admin can point a LDAP server connectivity test request to a rogue LDAP server instead of the configured one to obtain the LDAP server login credentials configured in the FortiGate.
Update to version 6.0.3.
Vulnerable software versionsFortiOS: 6.0.0 - 6.0.2
External linkshttp://fortiguard.com/psirt/FG-IR-18-157
Q & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
Yes. This vulnerability is being exploited in the wild.
3) Information disclosure
EUVDB-ID: #VU16173
Risk: Low
CVSSv3.1: 2.4 [CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2018-13366
CWE-ID:
CWE-200 - Information exposure
Exploit availability: No
DescriptionThe vulnerability allows a remote to obtain potentially sensitive information.
The weakness exists due to Fortigate PPTP service reveals serial number of FortiGate in the hostname field defined in connection control setup packets of PPTP protocol. A remote attacker can gain access to arbitrary data.
Update to version 6.0.2.
Vulnerable software versionsFortiOS: 6.0.0 - 6.0.1
External linkshttp://fortiguard.com/psirt/FG-IR-18-101
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
