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. 
Published 2023-07-22 05:15:37
Updated 2023-08-01 16:38:09
Source PHP Group
View at NVD,   CVE.org

Products affected by CVE-2023-3247

  • PHP » PHP
    Versions from including (>=) 8.1.0 and before (<) 8.1.20
    cpe:2.3:a:php:php:*:*:*:*:*:*:*:*
  • PHP » PHP
    Versions from including (>=) 8.0.0 and before (<) 8.0.29
    cpe:2.3:a:php:php:*:*:*:*:*:*:*:*
  • PHP » PHP
    Versions from including (>=) 8.2.0 and before (<) 8.2.7
    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
Find out if you* are affected by CVE-2023-3247!
*Directly or indirectly through your vendors, service providers and 3rd parties. Powered by attack surface intelligence from SecurityScorecard.

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

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