Vulnerability Details : CVE-2019-16992
The Keybase app 2.13.2 for iOS provides potentially insufficient notice that it is employing a user's private key to sign a certain cryptocurrency attestation (that an address at keybase.io can be used for Stellar payments to the user), which might be incompatible with a user's personal position on the semantics of an attestation.
Products affected by CVE-2019-16992
- cpe:2.3:a:keybase:keybase:2.13.2:*:*:*:*:iphone_os:*:*
Exploit prediction scoring system (EPSS) score for CVE-2019-16992
0.15%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 50 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2019-16992
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:P/I:N/A:N |
10.0
|
2.9
|
NIST | |
|
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2019-16992
-
The product does not verify, or incorrectly verifies, the cryptographic signature for data.Assigned by: nvd@nist.gov (Primary)
References for CVE-2019-16992
-
https://sneak.berlin/20190929/keybase-backdoor/
Jeffrey Paul: Keybase iOS Has A BackdoorThird Party Advisory
-
https://github.com/keybase/keybase-issues/issues/3583
Keybase iOS has a backdoor that signs proofs against my knowledge and consent · Issue #3583 · keybase/keybase-issues · GitHubThird Party Advisory
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