Security restrictions bypass in Intel SPI Flash

1) Improper access control

EUVDB-ID: #VU11624

Risk: Low

CVSSv3.1: 7.3 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-5703

CWE-ID: CWE-284 - Improper Access Control

Exploit availability: No

Description

The vulnerability allows a local attacker to write arbitrary files and cause DoS condition on the target system.

The weakness exists due to improper access control. A local attacker can gain access to unsafe opcodes in SPI Flash, modify the behavior of the SPI Flash and cause the service to crash.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Intel SPI Flash: All versions

CPE2.3

• cpe:2.3:h:intel:intel_spi_flash:*:*:*:*:*:*:*:*

External links

http://security-center.intel.com/advisory.aspx?intelid=INTEL-SA-00087&languageid=en-fr

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.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected device in order to exploit this vulnerability.

The attacker would have to login to the system and perform certain actions in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.