Payment-service crash via unchecked session concatenation
Published Jun 8, 2022 · Updated Aug 4, 2024
Heap overflow in Xiaomi Redmi Note 11 and Redmi Note 9T MIUI before 2022.01.26 allows local users to crash the Soter trusted app. The initSigh handler concatenates an attacker-controlled AuthKey alias and challenge into a fixed-size session-ID buffer without checking their lengths, enabling a heap overwrite. An unprivileged Android application can reach the handler through the exported SoterService without user interaction, interrupting the trusted payment service.
Summary
What happened
Heap overflow in Xiaomi Redmi Note 11 and Redmi Note 9T MIUI before 2022.01.26 allows local users to crash the Soter trusted app. The initSigh handler concatenates an attacker-controlled AuthKey alias and challenge into a fixed-size session-ID buffer without checking their lengths, enabling a heap overwrite. An unprivileged Android application can reach the handler through the exported SoterService without user interaction, interrupting the trusted payment service.
The record
- CVE
- CVE-2020-14125
- Published
- Jun 8, 2022
- Updated
- Aug 4, 2024
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-787, CWE-125, T1499
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jun 8, 2022CVE publishedPublication date reported by the CVE source.
- Aug 4, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
What conditions does exploitation require?
What is affected?
Affected products and versions are unavailable in this record.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- SoterService initSigh crash proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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