Vulnerability · Published Feb 15, 2024 · Assigned by mitre
CVE-2024-23674
Critical 9.6
In plain English
A critical-severity authentication bypass by spoofing in the affected software. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 54% of all known vulnerabilities).
Official description
The Online-Ausweis-Funktion eID scheme in the German National Identity card through 2024-02-15 allows authentication bypass by spoofing. A man-in-the-middle attacker can assume a victim's identify for access to government, medical, and financial resources, and can also extract personal data from the card, aka the "sPACE (Spoofing Password Authenticated Connection Establishment)" issue. This occurs because of a combination of factors, such as insecure PIN entry (for basic readers) and eid:// deeplinking. The victim must be using a modified eID kernel, which may occur if the victim is tricked into installing a fake version of an official app. NOTE: the BSI position is "ensuring a secure operational environment at the client side is an obligation of the ID card owner."
Affected products (as reported)
Weakness: CWE-290 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
References
- https://www.personalausweisportal.de/
- https://www.ausweisapp.bund.de/
- https://ctrlalt.medium.com/space-attack-spoofing-eids-password-authenticated-connection-establishment-11561e5657b1
- https://www.dropbox.com/scl/fi/2powlii0dnmr7p7v5ijhc/2024_German_eID_02_Spoofing_PACE_final.pdf?rlkey=nx0ffmmbq3hffgxsuqwf0f45z&dl=0