Risk | Critical |
Patch available | YES |
Number of vulnerabilities | 2 |
CVE-ID | CVE-2023-3823 CVE-2023-3824 |
CWE-ID | CWE-611 CWE-119 |
Exploitation vector | Network |
Public exploit | Vulnerability #2 is being exploited in the wild. |
Vulnerable software Subscribe |
PHP Universal components / Libraries / Scripting languages |
Vendor | PHP Group |
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
EUVDB-ID: #VU78977
Risk: High
CVSSv3.1: 7.9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2023-3823
CWE-ID:
CWE-611 - Improper Restriction of XML External Entity Reference ('XXE')
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to gain access to sensitive information.
The vulnerability exists due to insufficient validation of user-supplied XML input. A remote attacker can pass a specially crafted XML code to the affected application and view contents of arbitrary files on the system or initiate requests to external systems.
Successful exploitation of the vulnerability may allow an attacker to view contents of arbitrary file on the server or perform network scanning of internal and external infrastructure.
MitigationInstall updates from vendor's website.
Vulnerable software versionsPHP: 7.4 - 8.2.8
External linkshttp://www.php.net/ChangeLog-8.php#8.0.30
http://github.com/php/php-src/security/advisories/GHSA-3qrf-m4j2-pcrr
http://www.php.net/ChangeLog-8.php#8.1.22
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
EUVDB-ID: #VU78978
Risk: Critical
CVSSv3.1: 7.4 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L/E:H/RL:O/RC:C]
CVE-ID: CVE-2023-3824
CWE-ID:
CWE-119 - Memory corruption
Exploit availability: Yes
DescriptionThe vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error within the phar_dir_read() function. A remote attacker can force the application to open a specially crafted .phar archive, trigger memory corruption and execute arbitrary code on the target system.
MitigationInstall updates from vendor's website.
Vulnerable software versionsPHP: 7.4 - 8.2.8
External linkshttp://www.php.net/ChangeLog-8.php#8.0.30
http://www.php.net/ChangeLog-8.php#8.1.22
http://github.com/php/php-src/security/advisories/GHSA-jqcx-ccgc-xwhv
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
Yes. This vulnerability is being exploited in the wild.