Vulnerability Details : CVE-2023-3247
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.
Products affected by CVE-2023-3247
- cpe:2.3:a:php:php:*:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:*:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:*:*:*:*:*:*:*:*
Threat overview for CVE-2023-3247
Top countries where our scanners detected CVE-2023-3247
Top open port discovered on systems with this issue
80
IPs affected by CVE-2023-3247 78,261
Threat actors abusing to this issue?
Yes
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Exploit prediction scoring system (EPSS) score for CVE-2023-3247
0.05%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 21 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2023-3247
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
4.3
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |
2.8
|
1.4
|
NIST | |
2.6
|
LOW | CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:N/A:N |
1.2
|
1.4
|
PHP Group | |
4.3
|
MEDIUM | AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |
N/A
|
N/A
|
Oracle:CPUOct2023 |
CWE ids for CVE-2023-3247
-
The product does not check the return value from a method or function, which can prevent it from detecting unexpected states and conditions.Assigned by: security@php.net (Secondary)
-
The product uses insufficiently random numbers or values in a security context that depends on unpredictable numbers.Assigned by:
- nvd@nist.gov (Primary)
- security@php.net (Secondary)
References for CVE-2023-3247
-
https://github.com/php/php-src/security/advisories/GHSA-76gg-c692-v2mw
Missing error check and insufficient random bytes in HTTP Digest authentication for SOAP · Advisory · php/php-src · GitHubPatch;Vendor Advisory
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