The mod_php module for the Apache HTTP Server allows local users with write access to PHP scripts to send signals to the server's process group and use the server's file descriptors, as demonstrated by sending a STOP signal, then intercepting incoming connections on the server's TCP port
Published Oct 23, 2006
4.3
MEDIUMCVSS 2.0
EPSS 1.72%
Description
The mod_php module for the Apache HTTP Server allows local users with write access to PHP scripts to send signals to the server's process group and use the server's file descriptors, as demonstrated by sending a STOP signal, then intercepting incoming connections on the server's TCP port. NOTE: the PHP developer has disputed this vulnerability, saying "The opened file descriptors are opened by Apache. It is the job of Apache to protect them ... Not a bug in PHP.
Affected products
No data.
- 2.0
- 2.0.9
- 2.0.28
- 2.0.28
- 2.0.28
- 2.0.32
- 2.0.32
- 2.0.34
- 2.0.35
- 2.0.36
- 2.0.37
- 2.0.38
- 2.0.39
- 2.0.40
- 2.0.41
- 2.0.42
- 2.0.43
- 2.0.44
- 2.0.45
- 2.0.46
- 2.0.46
- 2.0.47
- 2.0.48
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
Red Hat statement
This is not a vulnerability. When PHP scripts are interpreted using the dynamically loaded mod_php DSO, the PHP interpreter executes with the privileges of the httpd child process. The PHP intepreter does not "sandbox" PHP scripts from the environment in which they run. On any modern Unix system a process can easily obtain access to all the parent file descriptors anyway, even if they have been closed.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:L/AC:L/Au:S/C:P/I:P/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.72% (0.01724) | 76.69th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.60% (0.01603) | 72.59th | v5 (v2026.06.15) |
| Mar 17, 2025 | 1.23% (0.01228) | 77.77th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.08% (0.00076) | 34.82th | v3 (v2023.03.01) |
| Jun 28, 2024 | 0.08% (0.00076) | 32.99th | v3 (v2023.03.01) |
| May 4, 2024 | 0.04% (0.00044) | 9.61th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00042) | 0.50th | v3 (v2023.03.01) |
| Mar 6, 2023 | 5.03% (0.05025) | 89.54th | v2 (v2022.01.01) |
| Apr 1, 2022 | 5.03% (0.05025) | 88.48th | v2 (v2022.01.01) |
| Feb 4, 2022 | 5.03% (0.05025) | 75.00th | v2 (v2022.01.01) |
No CWE recorded.
References (9)
- http://bugs.php.net/38915 x_refsource_MISCExploit
- http://hackerdom.ru/~dimmo/phpexpl.c x_refsource_MISCExploit
- http://www.securityfocus.com/archive/1/348368 mailing-listx_refsource_BUGTRAQExploitVendor Advisory
- http://www.securityfocus.com/archive/1/449234/100/0/threaded mailing-listx_refsource_BUGTRAQ
- http://www.securityfocus.com/archive/1/449298/100/0/threaded mailing-listx_refsource_BUGTRAQ
- http://www.securityfocus.com/bid/9302 vdb-entryx_refsource_BIDExploit
- https://access.redhat.com/security/cve/CVE-2003-1307 Vendor Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2003-1307
- https://www.cve.org/CVERecord?id=CVE-2003-1307
| Link | Providers | Tags |
|---|---|---|
| http://bugs.php.net/38915 | x_refsource_MISCExploit | |
| http://hackerdom.ru/~dimmo/phpexpl.c | x_refsource_MISCExploit | |
| http://www.securityfocus.com/archive/1/348368 | mailing-listx_refsource_BUGTRAQExploitVendor Advisory | |
| http://www.securityfocus.com/archive/1/449234/100/0/threaded | mailing-listx_refsource_BUGTRAQ | |
| http://www.securityfocus.com/archive/1/449298/100/0/threaded | mailing-listx_refsource_BUGTRAQ | |
| http://www.securityfocus.com/bid/9302 | vdb-entryx_refsource_BIDExploit | |
| https://access.redhat.com/security/cve/CVE-2003-1307 | Vendor Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2003-1307 | ||
| https://www.cve.org/CVERecord?id=CVE-2003-1307 |
Change history (0)
No recorded changes yet.