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    CVE-2020-28052

    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.

    Published:Dec 18, 2020
    Last Modified:May 12, 2025
    EPS:Dec 18, 2020
    EPSS Score:0.0378
    CVSS Score:8.1

    Affected Products

    Vendor
    Apache
    Product
    Karaf
    Vendor
    Bouncycastle
    Product
    Bc-java
    Vendor
    Oracle
    Product
    Banking Corporate Lending Process Management
    Vendor
    Oracle
    Product
    Banking Credit Facilities Process Management
    Vendor
    Oracle
    Product
    Banking Extensibility Workbench
    Vendor
    Oracle
    Product
    Banking Supply Chain Finance
    Vendor
    Oracle
    Product
    Banking Virtual Account Management
    Vendor
    Oracle
    Product
    Blockchain Platform
    Vendor
    Oracle
    Product
    Commerce Guided Search
    Vendor
    Oracle
    Product
    Communications Application Session Controller
    Vendor
    Oracle
    Product
    Communications Cloud Native Core Network Slice Selection Function
    Vendor
    Oracle
    Product
    Communications Convergence
    Vendor
    Oracle
    Product
    Communications Messaging Server
    Vendor
    Oracle
    Product
    Communications Pricing Design Center
    Vendor
    Oracle
    Product
    Communications Session Report Manager
    Vendor
    Oracle
    Product
    Communications Session Route Manager
    Vendor
    Oracle
    Product
    Jd Edwards Enterpriseone Tools
    Vendor
    Oracle
    Product
    Peoplesoft Enterprise Peopletools
    Vendor
    Oracle
    Product
    Utilities Framework
    Vendor
    Oracle
    Product
    Webcenter Portal
    Vendor
    Redhat
    Product
    Camel Quarkus
    Vendor
    Redhat
    Product
    Integration
    Vendor
    Redhat
    Product
    Jboss Enterprise Application Platform
    Vendor
    Redhat
    Product
    Jboss Enterprise Application Platform Eus
    Vendor
    Redhat
    Product
    Jboss Fuse
    Vendor
    Redhat
    Product
    Jbosseapxp
    Vendor
    Redhat
    Product
    Red Hat Single Sign On

    Exploits

    https://www.synopsys.com/blogs/software-security/cve-2020-28052-bouncy-castle/https://www.synopsys.com/blogs/software-security/cve-2020-28052-bouncy-castle/https://github.com/kurenaif/CVE-2020-28052_PoChttps://github.com/madstap/bouncy-castle-generative-test-poc

    Common Weakness Enumeration

    CWE-287 Improper Authentication

    Related CVEs

    CVE-2026-24656 (CVSS 3.7) — Deserialization of Untrusted Data vulnerability in Apache Karaf Decanter. The Decanter log socket collector …
    CVE-2022-40145 (CVSS 9.8) — This vulnerable is about a potential code injection when an attacker has control of the target LDAP server usi…
    CVE-2022-22932 (CVSS 5.3) — Apache Karaf obr:* commands and run goal on the karaf-maven-plugin have partial path traversal which allows to…
    CVE-2021-41766 (CVSS 8.1) — Apache Karaf allows monitoring of applications and the Java runtime by using the Java Management Extensions (J…
    CVE-2020-11980 (CVSS 6.3) — In Karaf, JMX authentication takes place using JAAS and authorization takes place using ACL files. By default,…
    CVE-2019-0226 (CVSS 4.9) — Apache Karaf Config service provides a install method (via service or MBean) that could be used to travel in a…
    CVE-2019-0191 (CVSS 6.5) — Apache Karaf kar deployer reads .kar archives and extracts the paths from the "repository/" and "resources/" e…
    CVE-2018-11788 (CVSS 9.8) — Apache Karaf provides a features deployer, which allows users to "hot deploy" a features XML by dropping the f…
    CVE-2018-11787 (CVSS 8.1) — In Apache Karaf version prior to 3.0.9, 4.0.9, 4.1.1, when the webconsole feature is installed in Karaf, it is…
    CVE-2018-11786 (CVSS 8.8) — In Apache Karaf prior to 4.2.0 release, if the sshd service in Karaf is left on so an administrator can manage…

    References

    https://github.com/bcgit/bc-java/wiki/CVE-2020-28052
    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
    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.html
    https://www.oracle.com//security-alerts/cpujul2021.html
    https://www.oracle.com/security-alerts/cpuApr2021.html
    https://www.oracle.com/security-alerts/cpuapr2022.html
    https://www.oracle.com/security-alerts/cpujan2022.html
    https://www.oracle.com/security-alerts/cpujul2022.html
    https://www.oracle.com/security-alerts/cpuoct2021.html
    https://www.synopsys.com/blogs/software-security/cve-2020-28052-bouncy-castle/
    https://github.com/bcgit/bc-java/wiki/CVE-2020-28052
    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
    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.html
    https://www.oracle.com//security-alerts/cpujul2021.html
    https://www.oracle.com/security-alerts/cpuApr2021.html
    https://www.oracle.com/security-alerts/cpuapr2022.html
    https://www.oracle.com/security-alerts/cpujan2022.html
    https://www.oracle.com/security-alerts/cpujul2022.html
    https://www.oracle.com/security-alerts/cpuoct2021.html
    https://www.synopsys.com/blogs/software-security/cve-2020-28052-bouncy-castle/

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High