CVE-2023-3823
PHP XML Remote File Disclosure Vulnerability
Description
In PHP versions 8.0.* before 8.0.30, 8.1.* before 8.1.22, and 8.2.* before 8.2.8 various XML functions rely on libxml global state to track configuration variables, like whether external entities are loaded. This state is assumed to be unchanged unless the user explicitly changes it by calling appropriate function. However, since the state is process-global, other modules - such as ImageMagick - may also use this library within the same process, and change that global state for their internal purposes, and leave it in a state where external entities loading is enabled. This can lead to the situation where external XML is parsed with external entities loaded, which can lead to disclosure of any local files accessible to PHP. This vulnerable state may persist in the same process across many requests, until the process is shut down.
INFO
Published Date :
Aug. 11, 2023, 6:15 a.m.
Last Modified :
Oct. 27, 2023, 6:58 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
4.7
Exploitability Score :
3.9
Public PoC/Exploit Available at Github
CVE-2023-3823 has a 2 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
Affected Products
The following products are affected by CVE-2023-3823
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2023-3823.
| URL | Resource |
|---|---|
| https://github.com/php/php-src/security/advisories/GHSA-3qrf-m4j2-pcrr | Exploit Third Party Advisory |
| https://lists.debian.org/debian-lts-announce/2023/09/msg00002.html | Mailing List |
| https://lists.fedoraproject.org/archives/list/[email protected]/message/7NBF77WN6DTVTY2RE73IGPYD6M4PIAWA/ | Mailing List |
| https://security.netapp.com/advisory/ntap-20230825-0001/ | Third Party Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
None
Dockerfile
None
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2023-3823 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2023-3823 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Modified Analysis by [email protected]
Oct. 27, 2023
Action Type Old Value New Value Changed Reference Type https://lists.debian.org/debian-lts-announce/2023/09/msg00002.html No Types Assigned https://lists.debian.org/debian-lts-announce/2023/09/msg00002.html Mailing List Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/7NBF77WN6DTVTY2RE73IGPYD6M4PIAWA/ Third Party Advisory https://lists.fedoraproject.org/archives/list/[email protected]/message/7NBF77WN6DTVTY2RE73IGPYD6M4PIAWA/ Mailing List Changed Reference Type https://security.netapp.com/advisory/ntap-20230825-0001/ No Types Assigned https://security.netapp.com/advisory/ntap-20230825-0001/ Third Party Advisory Changed CPE Configuration OR *cpe:2.3:a:php:php:*:*:*:*:*:*:*:* versions from (including) 8.0.0 up to (excluding) 8.0.30 *cpe:2.3:a:php:php:*:*:*:*:*:*:*:* versions from (including) 8.1.0 up to (excluding) 8.1.22 *cpe:2.3:a:php:php:*:*:*:*:*:*:*:* versions from (including) 8.2.0 up to (excluding) 8.2.8 OR *cpe:2.3:a:php:php:*:*:*:*:*:*:*:* versions from (including) 8.0.0 up to (excluding) 8.0.30 *cpe:2.3:a:php:php:*:*:*:*:*:*:*:* versions from (including) 8.1.0 up to (excluding) 8.1.22 *cpe:2.3:a:php:php:*:*:*:*:*:*:*:* versions from (including) 8.2.0 up to (excluding) 8.2.9 Added CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Sep. 05, 2023
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2023/09/msg00002.html [No Types Assigned] -
CVE Modified by [email protected]
Aug. 25, 2023
Action Type Old Value New Value Added Reference https://security.netapp.com/advisory/ntap-20230825-0001/ [No Types Assigned] -
Initial Analysis by [email protected]
Aug. 22, 2023
Action Type Old Value New Value Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Changed Reference Type https://github.com/php/php-src/security/advisories/GHSA-3qrf-m4j2-pcrr No Types Assigned https://github.com/php/php-src/security/advisories/GHSA-3qrf-m4j2-pcrr Exploit, Third Party Advisory Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/7NBF77WN6DTVTY2RE73IGPYD6M4PIAWA/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/7NBF77WN6DTVTY2RE73IGPYD6M4PIAWA/ Third Party Advisory Added CWE NIST CWE-611 Added CPE Configuration OR *cpe:2.3:a:php:php:*:*:*:*:*:*:*:* versions from (including) 8.0.0 up to (excluding) 8.0.30 *cpe:2.3:a:php:php:*:*:*:*:*:*:*:* versions from (including) 8.1.0 up to (excluding) 8.1.22 *cpe:2.3:a:php:php:*:*:*:*:*:*:*:* versions from (including) 8.2.0 up to (excluding) 8.2.8 -
CVE Modified by [email protected]
Aug. 12, 2023
Action Type Old Value New Value Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/7NBF77WN6DTVTY2RE73IGPYD6M4PIAWA/ [No Types Assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2023-3823 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2023-3823
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.11 }} 0.01%
score
0.44387
percentile