high
7.4
CWE
295
Advisory Published
Advisory Published
Updated

CVE-2021-3450: CA certificate check bypass with X509_V_FLAG_X509_STRICT

First published: Thu Mar 25 2021(Updated: )

OpenSSL could allow a remote attacker to bypass security restrictions, caused by a a missing check in the validation logic of X.509 certificate chains by the X509_V_FLAG_X509_STRICT flag. By using any valid certificate or certificate chain to sign a specially crafted certificate, an attacker could bypass the check that non-CA certificates must not be able to issue other certificates and override the default purpose.

Credit: openssl-security@openssl.org openssl-security@openssl.org openssl-security@openssl.org

Affected SoftwareAffected VersionHow to fix
rust/openssl-src>=111.11.0<111.15.0
111.15.0
IBM Security Verify Bridge<=All
OpenSSL libcrypto>=1.1.1h<1.1.1k
FreeBSD FreeBSD=12.2
FreeBSD FreeBSD=12.2-p1
FreeBSD FreeBSD=12.2-p2
netapp santricity smi-s provider firmware
netapp santricity smi-s provider
NetApp StorageGRID Webscale
netapp storagegrid
windriver linux
windriver linux=17.0
windriver linux=18.0
windriver linux=19.0
netapp cloud volumes ontap mediator
NetApp OnCommand Workflow Automation
NetApp ONTAP Select Deploy
netapp storagegrid
Fedora=34
Tenable Nessus<=8.13.1
tenable nessus agent>=8.2.1<=8.2.3
Tenable Nessus Network Monitor=5.11.0
Tenable Nessus Network Monitor=5.11.1
Tenable Nessus Network Monitor=5.12.0
Tenable Nessus Network Monitor=5.12.1
Tenable Nessus Network Monitor=5.13.0
Oracle Commerce Guided Search=11.3.2
oracle enterprise manager for storage management=13.4.0.0
Oracle GraalVM Enterprise Edition=19.3.5
Oracle GraalVM Enterprise Edition=20.3.1.2
Oracle GraalVM Enterprise Edition=21.0.0.2
Oracle JD Edwards EnterpriseOne Tools<9.2.6.0
oracle jd edwards world security=a9.4
Oracle MySQL Connectors<=8.0.23
MySQL Enterprise Monitor<=8.0.23
MySQL<=5.7.33
MySQL>=8.0.15<=8.0.23
oracle mysql workbench<=8.0.23
Oracle PeopleSoft Enterprise PeopleTools>=8.57<=8.59
Oracle Secure Backup<18.1.0.1.0
Oracle Secure Global Desktop=5.6
Oracle WebLogic Server=12.2.1.4.0
Oracle WebLogic Server=14.1.1.0.0
McAfee Web Gateway=8.2.19
McAfee Web Gateway=9.2.10
McAfee Web Gateway=10.1.1
mcafee web gateway cloud service=8.2.19
mcafee web gateway cloud service=9.2.10
mcafee web gateway cloud service=10.1.1
sonicwall sma100 firmware<10.2.1.0-17sv
SonicWall SMA 100
SonicWall Capture Client<3.6.24
SonicWall Email Security<10.0.11
SonicWall SonicOS<=7.0.1-r1456
Node.js>=10.0.0<10.24.1
Node.js>=12.0.0<12.22.1
Node.js>=14.0.0<14.16.1
Node.js>=15.0.0<15.14.0

Remedy

https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=2a40b7bc7b94dd7de897a74571e7024f0cf0d63b

Remedy

https://www.oracle.com//security-alerts/cpujul2021.html

Remedy

https://www.oracle.com/security-alerts/cpuApr2021.html

Remedy

https://www.oracle.com/security-alerts/cpuapr2022.html

Remedy

https://www.oracle.com/security-alerts/cpujul2022.html

Remedy

https://www.oracle.com/security-alerts/cpuoct2021.html

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is the severity of CVE-2021-3450?

    CVE-2021-3450 is classified as critical due to its potential to allow remote attackers to bypass security restrictions.

  • How do I fix CVE-2021-3450?

    To fix CVE-2021-3450, update OpenSSL to version 1.1.1k or higher, or apply patches provided by software vendors utilizing the affected libraries.

  • What systems are affected by CVE-2021-3450?

    CVE-2021-3450 affects various versions of OpenSSL prior to 1.1.1k, and systems including IBM Security Verify Bridge and multiple embedded Linux distributions.

  • What type of vulnerability is CVE-2021-3450?

    CVE-2021-3450 is an authentication bypass vulnerability that stems from a missing check in the validation logic of X.509 certificate chains.

  • Can CVE-2021-3450 be exploited remotely?

    Yes, CVE-2021-3450 can be exploited remotely by attackers who manage to sign a specially crafted certificate.

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