PoC Index

CVE-2016-10555

MEDIUM 6.5EPSS 4.9%

Since "algorithm" isn't enforced in jwt.decode()in jwt-simple 0.3.0 and earlier, a malicious user could choose what algorithm is sent sent to the server. If the server is expecting RSA but is sent HMAC-SHA with RSA's public key, the server will think the public key is actually an HMAC private key. This could be used to forge any data an attacker wants.

CVSS v3.0
6.5 MEDIUMCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
CVSS v2.0
4.0 MEDIUMAV:N/AC:L/Au:S/C:N/I:P/A:N
EPSS
4.90% chance of exploitation in the next 30 days, 91th percentile
Published
2018-05-31
Updated
2024-09-16

Proof-of-concept exploits (3)

References

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