CVE-2020-28052

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CVE

An issue was discovered in Legion of the Bouncy Castle BC Java 1.65 and 1.66. The OpenBSDBCrypt.checkPassword utility me

An issue was discovered in Legion of the Bouncy Castle BC Java 1.65 and 1.66. The OpenBSDBCrypt.checkPassword utility method compared incorrect data when checking the password, allowing incorrect passwords to indicate they were matching with previously hashed ones that were different.

HIGH · CVSS 8.1 EPSS 0.04099

Act now

Public exploit or PoC is available
CVSS base score ≥ 7.0

Sigma rules0 YARA rules0

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Affected Products & Versions

bouncycastle bc-javaall versions
apache karafall versions
oracle banking corporate lending process managementall versions
oracle banking credit facilities process managementall versions
oracle banking extensibility workbenchall versions
oracle banking supply chain financeall versions
oracle banking virtual account managementall versions
oracle blockchain platform< 21.1.2
Show all 20 affected productsoracle commerce guided searchall versions
oracle communications application session controllerall versions
oracle communications cloud native core network slice selection functionall versions
oracle communications convergenceall versions
oracle communications pricing design centerall versions
oracle communications session report manager>= 8.0.0 and <= 8.2.4.0
oracle communications session route manager>= 8.2.0 and <= 8.2.4
oracle jd edwards enterpriseone tools<= 9.2.5.3
oracle peoplesoft enterprise peopletoolsall versions
oracle utilities frameworkall versions
oracle webcenter portalall versions
oracle communications messaging serverall versions

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Affected Packages

Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.

Maven org.bouncycastle:bcprov-ext-jdk15on HIGH fixed in 1.67

Maven org.bouncycastle:bcprov-ext-jdk16 HIGH fixed in 1.67

Maven org.bouncycastle:bcprov-jdk14 HIGH fixed in 1.67

Maven org.bouncycastle:bcprov-jdk15 HIGH fixed in 1.67

Maven org.bouncycastle:bcprov-jdk15on HIGH fixed in 1.67

Maven org.bouncycastle:bcprov-jdk15to18 HIGH fixed in 1.67

Maven org.bouncycastle:bcprov-jdk16 HIGH fixed in 1.67

⚠

Public Exploits & PoCs

pocwww.synopsys.com · cve-2020-28052-bouncy-castlewww.synopsys.com

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Scoring & Timeline

8.1

HIGH · CVSS v3.1 · cve@mitre.org

View on NVD

Attack Vector

Network Adjacent Local Physical

Attack Complexity

Low High

Privileges Required

None Low High

User Interaction

None Required

Scope

Unchanged Changed

Confidentiality

None Low High

Integrity

None Low High

Availability

None Low High

Published to NVD18 Dec 2020 · 01:15 AM

CVSS VectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

⚑

Vendor Advisories

rhsaRHSA-2024:10208Critical
suse-csafopenSUSE-SU-2024:10661-1
rhsaRHSA-2021:4767Important
rhsaRHSA-2021:3205Moderate
rhsaRHSA-2021:2755Moderate
Show all 13 vendor advisoriesrhsaRHSA-2021:1401Moderate
rhsaRHSA-2021:3140Moderate
rhsaRHSA-2021:2210Important
rhsaRHSA-2021:0885Moderate
rhsaRHSA-2021:0874Moderate
rhsaRHSA-2021:0974Moderate
rhsaRHSA-2021:0872Moderate
rhsaRHSA-2021:0873Moderate

🔗

References & Sources

Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.

https://github.com/bcgit/bc-java/wiki/CVE-2020-28052MitigationPatchThird Party Advisory

https://lists.apache.org/thread.html/r167dbc42ef7c59802c2ca1ac14735ef9cf687c25208229993d6206fe%40%3Cissues.karaf.apache.org%3E

https://lists.apache.org/thread.html/r175f5a25d100dbe2b1bd3459b3ce882a84c3ff91b120ed4ff2d57b53%40%3Ccommits.pulsar.apache.org%3E

https://lists.apache.org/thread.html/r25d53acd06f29244b8a103781b0339c5e7efee9099a4d52f0c230e4a%40%3Ccommits.druid.apache.org%3E

https://lists.apache.org/thread.html/r2ddabd06d94b60cfb0141e4abb23201c628ab925e30742f61a04d013%40%3Cissues.karaf.apache.org%3E

https://lists.apache.org/thread.html/r30a139c165b3da6e0d5536434ab1550534011b1fdfcd2f5d95892c5b%40%3Cissues.karaf.apache.org%3E

Show all 25 references

https://lists.apache.org/thread.html/r37d332c0bf772f4982d1fdeeb2f88dd71dab6451213e69e43734eadc%40%3Ccommits.pulsar.apache.org%3E

https://lists.apache.org/thread.html/r4e1619cfefcd031fac62064a3858f5c9229eef907bd5d8ef14c594fc%40%3Cissues.karaf.apache.org%3E

https://lists.apache.org/thread.html/r77af3ac7c3bfbd5454546e13faf7aec21d627bdcf36c9ca240436b94%40%3Cissues.karaf.apache.org%3E

https://lists.apache.org/thread.html/r8c36ba34e80e05eecb1f80071cc834d705616f315b634ec0c7d8f42e%40%3Cissues.solr.apache.org%3E

https://lists.apache.org/thread.html/r954d80fd18e9dafef6e813963eb7e08c228151c2b6268ecd63b35d1f%40%3Ccommits.druid.apache.org%3E

https://lists.apache.org/thread.html/rc9e441c1576bdc4375d32526d5cf457226928e9c87b9f54ded26271c%40%3Cissues.karaf.apache.org%3E

https://lists.apache.org/thread.html/rcd37d9214b08067a2e8f2b5b4fd123a1f8cb6008698d11ef44028c21%40%3Cissues.karaf.apache.org%3E

https://lists.apache.org/thread.html/rdcbad6d8ce72c79827ed8c635f9a62dd919bb21c94a0b64cab2efc31%40%3Cissues.karaf.apache.org%3E

https://lists.apache.org/thread.html/rddd2237b8636a48d573869006ee809262525efb2b6ffa6eff50d2a2d%40%3Cjira.kafka.apache.org%3E

https://lists.apache.org/thread.html/rdfd2901b8b697a3f6e2c9c6ecc688fd90d7f881937affb5144d61d6e%40%3Ccommits.druid.apache.org%3E

https://lists.apache.org/thread.html/rf9abfc0223747a56694825c050cc6b66627a293a32ea926b3de22402%40%3Cissues.karaf.apache.org%3E

https://lists.apache.org/thread.html/rfc0db1f3c375087e69a239f9284ded72d04fbb55849eadde58fa9dc2%40%3Cissues.karaf.apache.org%3E

https://www.bouncycastle.org/releasenotes.htmlRelease NotesVendor Advisory

https://www.oracle.com//security-alerts/cpujul2021.htmlPatchThird Party Advisory

https://www.oracle.com/security-alerts/cpuApr2021.htmlPatchThird Party Advisory

https://www.oracle.com/security-alerts/cpuapr2022.htmlPatchThird Party Advisory

https://www.oracle.com/security-alerts/cpujan2022.htmlPatchThird Party Advisory

https://www.oracle.com/security-alerts/cpujul2022.htmlPatchThird Party Advisory

https://www.oracle.com/security-alerts/cpuoct2021.htmlPatchThird Party Advisory

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