PIN reset via client-side verifier hook
Published Sep 29, 2025 · Updated Sep 29, 2025
Improper access control in Payeer Android application 2.5.0 allows local users with root access to change the authentication PIN. The ChangePinActivity.d method trusts the client-side y1.a verifier, so a Frida hook can force a non-null success result for an incorrect PIN. Root access and an authenticated app session are required; exploitation resets the account PIN without the current PIN and can deny the legitimate user access.
Summary
What happened
Improper access control in Payeer Android application 2.5.0 allows local users with root access to change the authentication PIN. The ChangePinActivity.d method trusts the client-side y1.a verifier, so a Frida hook can force a non-null success result for an incorrect PIN. Root access and an authenticated app session are required; exploitation resets the account PIN without the current PIN and can deny the legitimate user access.
The record
- CVE
- CVE-2025-57197
- Published
- Sep 29, 2025
- Updated
- Sep 29, 2025
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-284, T1640, T1617
- Attack vector
- local
- Privileges
- admin
Timeline
How it unfolded
- Sep 29, 2025CVE publishedPublication date reported by the CVE source.
- Sep 29, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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What is affected?
Affected products and versions are unavailable in this record.
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
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.
Public exploit references
- Payeer PIN validator Frida hookfunctional · demonstrated
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Technologies
Your stack
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Your stack
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