Fortinet ha publicado un aviso de seguridad que contempla vulnerabilidades que afectan el producto: FortiGate (FortiOS).

Se recomienda instalar las actualizaciones del Fabricante disponibles en medios oficiales previo a análisis del impacto que están pueden provocar sobre los servicios críticos del negocio de su organización.

De ocupar asistencia, favor comunicarse con su ejecutivo de cuenta o el equipo de soporte de PYAServices 

Detalle de las Vulnerabilidades a continuación:

FortiOS – heap-based buffer overflow in sslvpnd

Link: PSIRT Advisories | FortiGuard

Summary

A heap-based buffer overflow vulnerability [CWE-122] in FortiOS SSL-VPN may allow a remote unauthenticated attacker to execute arbitrary code or commands via specifically crafted requests.

Exploitation status:

Fortinet is aware of an instance where this vulnerability was exploited in the wild, and recommends immediately validating your systems against the following indicators of compromise:

Multiple log entries with:

Logdesc="Application crashed" and msg="[...] application:sslvpnd,[...], Signal 11 received, Backtrace: [...]“

Presence of the following artifacts in the filesystem:

/data/lib/libips.bak
/data/lib/libgif.so
/data/lib/libiptcp.so
/data/lib/libipudp.so
/data/lib/libjepg.so
/var/.sslvpnconfigbk
/data/etc/wxd.conf
/flash

Connections to suspicious IP addresses from the FortiGate:

188.34.130.40:444
103.131.189.143:30080,30081,30443,20443
192.36.119.61:8443,444
172.247.168.153:8033

Workaround :

Disable SSL-VPN.

Affected Products

FortiOS version 7.2.0 through 7.2.2
FortiOS version 7.0.0 through 7.0.8
FortiOS version 6.4.0 through 6.4.10
FortiOS version 6.2.0 through 6.2.11
FortiOS version 6.0.0 through 6.0.15
FortiOS version 5.6.0 through 5.6.14
FortiOS version 5.4.0 through 5.4.13
FortiOS version 5.2.0 through 5.2.15
FortiOS version 5.0.0 through 5.0.14
FortiOS-6K7K version 7.0.0 through 7.0.7
FortiOS-6K7K version 6.4.0 through 6.4.9
FortiOS-6K7K version 6.2.0 through 6.2.11
FortiOS-6K7K version 6.0.0 through 6.0.14

Solutions

Please upgrade to FortiOS version 7.2.3 or above
Please upgrade to FortiOS version 7.0.9 or above
Please upgrade to FortiOS version 6.4.11 or above
Please upgrade to FortiOS version 6.2.12 or above
Please upgrade to upcoming FortiOS-6K7K version 7.0.8 or above
Please upgrade to FortiOS-6K7K version 6.4.10 or above
Please upgrade to upcoming FortiOS-6K7K version 6.2.12 or above
Please upgrade to FortiOS-6K7K version 6.0.15 or above