CVE-2023-3247

Missing error check and insufficient random bytes in HTTP Digest authentication for SOAP

Description

In PHP versions 8.0.* before 8.0.29, 8.1.* before 8.1.20, 8.2.* before 8.2.7 when using SOAP HTTP Digest Authentication, random value generator was not checked for failure, and was using narrower range of values than it should have. In case of random generator failure, it could lead to a disclosure of 31 bits of uninitialized memory from the client to the server, and it also made easier to a malicious server to guess the client's nonce. 

Categories

2.6
CVSS
Severity: Low
CVSS 3.1 •
EPSS 0.25%
Vendor Advisory github.com
Affected: PHP Group PHP
Published at:
Updated at:

References

Frequently Asked Questions

What is the severity of CVE-2023-3247?
CVE-2023-3247 has been scored as a low severity vulnerability.
How to fix CVE-2023-3247?
To fix CVE-2023-3247, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-3247 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-3247 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-3247?
CVE-2023-3247 affects PHP Group PHP.
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