CVE-2020-27524 — HIGH (7.1)

Vulnerability Description

On Audi A7 MMI 2014 vehicles, the Bluetooth stack in Audi A7 MMI Multiplayer with version (N+R_CN_AU_P0395) mishandles %x and %s format string specifiers in a device name. This may lead to memory content leaks and potentially crash the services.

CVSS Score

7.1

HIGH

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H

Attack Vector

ADJACENT_NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

LOW

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Audi	Mmi Multiplayer	n\+r_cn_au_p0395
Audi	A7	-

Related Weaknesses (CWE)

CWE-134

References

https://tiger-team-1337.blogspot.com/2020/10/audi-a7-2014-mmi-mishandles-format.ExploitThird Party Advisory
https://twitter.com/Kevin2600/status/1316380576593571840Third Party Advisory
https://www.youtube.com/watch?v=BQUVgAdhwQsExploitThird Party Advisory
https://tiger-team-1337.blogspot.com/2020/10/audi-a7-2014-mmi-mishandles-format.ExploitThird Party Advisory
https://twitter.com/Kevin2600/status/1316380576593571840Third Party Advisory
https://www.youtube.com/watch?v=BQUVgAdhwQsExploitThird Party Advisory

FAQ

What is CVE-2020-27524?

CVE-2020-27524 is a vulnerability with a CVSS score of 7.1 (HIGH). On Audi A7 MMI 2014 vehicles, the Bluetooth stack in Audi A7 MMI Multiplayer with version (N+R_CN_AU_P0395) mishandles %x and %s format string specifiers in a device name. This may lead to memory cont...

How severe is CVE-2020-27524?

CVE-2020-27524 has been rated HIGH with a CVSS base score of 7.1/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2020-27524?

Check the references section above for vendor advisories and patch information. Affected products include: Audi Mmi Multiplayer, Audi A7.