SARA / Free Tools / CVE / CVE-2018-5382

CVE-2018-5382 — The default BKS keystore use an HMAC that is only 16 bits long, which can allow

The default BKS keystore use an HMAC that is only 16 bits long, which can allow an attacker to compromise the integrity of a BKS keystore. Bouncy Castle release 1.47 changes the BKS format to a format which uses a 160 bit HMAC instead. This applies to any BKS keystore generated p

CVSS
— —
EPSS
0.15% (top 64.30%)
CWE
CWE-327
Published
2018-04-16T13:00:00.000Z
Last modified
2024-09-16T16:27:56.228Z
CVSS vector
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01What is this vulnerability?

The default BKS keystore use an HMAC that is only 16 bits long, which can allow an attacker to compromise the integrity of a BKS keystore. Bouncy Castle release 1.47 changes the BKS format to a format which uses a 160 bit HMAC instead. This applies to any BKS keystore generated prior to BC 1.47. For situations where people need to create the files for legacy reasons a specific keystore type…

02Affected products

VendorProductVersions
Legion of the Bouncy CastleBouncy Castleall

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

09References

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