TI-2018-08804 Aliases CVE-2018-12271 GHSA-38mq-vrqg-wrc3

An issue was discovered in the com.getdropbox.Dropbox app 100.2 for iOS.

LOW 29CWE-287Published 2018-06-13 · Updated 2024-08-05

Key facts

Attack vector: Physical
Privileges required: None
User interaction: None
Attack complexity: High
Impact type: Security bypass
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-287.

Summary

An issue was discovered in the com.getdropbox.Dropbox app 100.2 for iOS. The LAContext class for Biometric (TouchID) validation allows authentication bypass by overriding the LAContext return Boolean value to be "true" because the kSecAccessControlUserPresence protection mechanism is not used. In other words, an attacker could authenticate with an arbitrary fingerprint. NOTE: the vendor indicates that this is not an attack of interest within the context of their threat model, which excludes iOS devices on which a jailbreak has occurred

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00424 36th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:dropbox:dropbox:100.2:::::iphone_os::	100.2	Vulnerable	dropbox

cpe:2.3:a:dropbox:dropbox:100.2:*:*:*:*:iphone_os:*:* Versions 100.2 Vulnerable ·dropbox

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2018-12271
2026-10-03 Alias added: GHSA-38mq-vrqg-wrc3

References

Advisory 2

Other 1

https://www.dropbox.com/s/n880ob3gtvfwryu/20180609_013320.mp4?dl=0

TI-2019-09089 Dropbox.exe (and QtWebEngineProcess.exe in the Web Helper) in the Dropbox desktop… CVSS 3.0HIGH 7.8
TI-2010-03202 dropboxd in Dropbox 0.7.110 places a zero-length directory name in the LD_LIBRARY_PATH… CVSS 2.0MEDIUM 6.9
TI-2018-08935 An issue was discovered in the com.dropbox.android application 98.2.2 for Android. CVSS 3.0LOW 3.6
TI-2018-08934 An issue was discovered in the com.dropbox.android application 98.2.2 for Android. CVSS 3.0LOW 3.1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences