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UK Cyber Defence
VulnerabilityAnalyzed

CVE-2019-8900

A vulnerability in the SecureROM of some Apple devices can be exploited by an unauthenticated local attacker to execute arbitrary code upon booting those devices.

MEDIUM 6.8EPSS 68.8%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 68.8%, higher than 99% of all known CVEs. Patch or mitigate before the next change window.

Description

A vulnerability in the SecureROM of some Apple devices can be exploited by an unauthenticated local attacker to execute arbitrary code upon booting those devices. This vulnerability allows arbitrary code to be executed on the device. Exploiting the vulnerability requires physical access to the device: the device must be plugged in to a computer upon booting, and it must be put into Device Firmware Update (DFU) mode. The exploit is not persistent; rebooting the device overrides any changes to the device's software that were made during an exploited session on the device. Additionally, unless an attacker has access to the device's unlock PIN or fingerprint, an attacker cannot gain access to information protected by Apple's Secure Enclave or Touch ID features.

CVSS 3.1
6.8 MEDIUMCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
68.78% probability · 99th percentile
CISA KEV
Not listed
Weakness
CWE-94
Affected
apple/securerom
Source
product-security@apple.com

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.