Vulnerability Details : CVE-2021-36689
An issue discovered in com.samourai.wallet.PinEntryActivity.java in Streetside Samourai Wallet 0.99.96i allows attackers to view sensitive information and decrypt data via a brute force attack that uses a recovered samourai.dat file. The PIN is 5 to 8 digits, which may be insufficient in this situation.
Products affected by CVE-2021-36689
- cpe:2.3:a:samourai-wallet-android_project:samourai-wallet-android:0.99.96i:*:*:*:*:android:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-36689
0.05%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 18 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-36689
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.5
|
MEDIUM | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
1.8
|
3.6
|
NIST |
CWE ids for CVE-2021-36689
-
The product does not require that users should have strong passwords, which makes it easier for attackers to compromise user accounts.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-36689
-
https://vrls.ws/posts/2021/08/samourai-wallet-bitcoin-pin-authentication-bypass-crypto/
Samourai Wallet - Analysis of PIN Authentication & Cryptographic Implementation | vrls.wsExploit;Technical Description;Third Party Advisory
-
https://code.samourai.io/wallet/samourai-wallet-android/-/blob/develop/app/src/main/java/com/samourai/wallet/PinEntryActivity.java#L302
app/src/main/java/com/samourai/wallet/PinEntryActivity.java · develop · Wallet / samourai-wallet-android · GitLabThird Party Advisory
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