Strix
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CVE-2015-1793

UnknownEPSS 61.80%

Last modified

CVE-2015-1793 is a vulnerability of currently unknown severity. The X509_verify_cert function in crypto/x509/x509_vfy.c in OpenSSL 1.0.1n, 1.0.1o, 1.0.2b, and 1.0.2c does not properly process X.509 Basic Constraints cA values during identification of alternative certificate chains, which allows remote attackers to spoof a Certification Authority role and trigger unintended certificate verifications via a valid leaf certificate.. EPSS estimates a 61.80% chance of exploitation in the next 30 days.

Description

The X509_verify_cert function in crypto/x509/x509_vfy.c in OpenSSL 1.0.1n, 1.0.1o, 1.0.2b, and 1.0.2c does not properly process X.509 Basic Constraints cA values during identification of alternative certificate chains, which allows remote attackers to spoof a Certification Authority role and trigger unintended certificate verifications via a valid leaf certificate.

Metrics

EPSS Probability
61.80%

99.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
OracleSupply Chain Products Suite6.1.2.2
OracleSupply Chain Products Suite6.1.3.0
OracleSupply Chain Products Suite6.2.0
OracleJd Edwards Enterpriseone Tools9.1
OracleJd Edwards Enterpriseone Tools9.2
OpensslOpenssl1.0.1n
OpensslOpenssl1.0.1o
OpensslOpenssl1.0.2b
OpensslOpenssl1.0.2c
OracleOpus 10g Ethernet Switch Family<= 2.0.0.6

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2015-1793?
The X509_verify_cert function in crypto/x509/x509_vfy.c in OpenSSL 1.0.1n, 1.0.1o, 1.0.2b, and 1.0.2c does not properly process X.509 Basic Constraints cA values during identification of alternative certificate chains, which allows remote attackers to spoof a Certification Authority role and trigger unintended certificate verifications via a valid leaf certificate.
How severe is CVE-2015-1793?
Severity scoring for CVE-2015-1793 is pending analysis. The EPSS model estimates a 61.80% probability of exploitation in the next 30 days.
How do I fix CVE-2015-1793?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2015-1793?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST