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computer threat CVE-2015-5369

Pulse Secure Connect Secure: Man-in-the-Middle of Hardware Acceleration

Synthesis of the vulnerability

An attacker can perform a Man-in-the-Middle when the Hardware Acceleration is enabled on Pulse Secure Connect Secure, in order to read or alter TLS session data.
Severity of this bulletin: 2/4.
Creation date: 31/07/2015.
Références of this threat: CVE-2015-5369, SA40004, TSB16756, VIGILANCE-VUL-17547.
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Description of the vulnerability

The Hardware Acceleration can be enabled on Pulse Secure Connect Secure.

However, in this case, it does not correctly compute the MAC of the TLS Handshake Finished Message. Using a second vulnerability, an attacker can thus perform a Man-in-the-Middle.

An attacker can therefore perform a Man-in-the-Middle when the Hardware Acceleration is enabled on Pulse Secure Connect Secure, in order to read or alter TLS session data.
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This computer vulnerability alert impacts software or systems such as IVE OS, MAG Series by Juniper, Juniper SA, Pulse Connect Secure, MAG Series by Pulse Secure.

Our Vigil@nce team determined that the severity of this computer threat alert is medium.

The trust level is of type confirmed by the editor, with an origin of internet server.

An attacker with a expert ability can exploit this security vulnerability.

Solutions for this threat

Pulse Secure Connect Secure: workaround for Hardware Acceleration.
A workaround is to disable Hardware Acceleration.
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