CVE-2024-4577 (GCVE-0-2024-4577)
Vulnerability from cvelistv5 – Published: 2024-06-09 19:42 – Updated: 2025-10-21 23:05Title
Argument Injection in PHP-CGI
Summary
In PHP versions 8.1.* before 8.1.29, 8.2.* before 8.2.20, 8.3.* before 8.3.8, when using Apache and PHP-CGI on Windows, if the system is set up to use certain code pages, Windows may use "Best-Fit" behavior to replace characters in command line given to Win32 API functions. PHP CGI module may misinterpret those characters as PHP options, which may allow a malicious user to pass options to PHP binary being run, and thus reveal the source code of scripts, run arbitrary PHP code on the server, etc.
Severity
9.8 (Critical)
SSVC
Exploitation: active
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-06-15 03:55 UTC
CWE
- CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Assigner
References
23 references
Impacted products
4 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| PHP Group | PHP |
Affected:
8.1.* , < 8.1.29
(semver)
Affected: 8.2.* , < 8.2.20 (semver) Affected: 8.3.* , < 8.3.8 (semver) |
guessed | |
| php_group | php |
Affected:
8.1.0 , < 8.1.29
(custom)
cpe:2.3:a:php_group:php:8.1.0:*:*:*:*:*:*:* |
||
| php_group | php |
Affected:
8.2.0 , < 8.2.20
(custom)
cpe:2.3:a:php_group:php:8.2.0:*:*:*:*:*:*:* |
||
| php_group | php |
Affected:
8.3.0 , < 8.3.8
(custom)
cpe:2.3:a:php_group:php:8.3.0:*:*:*:*:*:*:* |
Date Public
2024-06-09 19:30
CISA
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 60e22401-4121-4ad7-aa56-c1016ce371a8
Exploited: Yes
Timestamps
First Seen: 2024-06-12
Asserted: 2024-06-12
Scope
Notes: KEV entry: PHP-CGI OS Command Injection Vulnerability | Affected: PHP Group / PHP | Description: PHP, specifically Windows-based PHP used in CGI mode, contains an OS command injection vulnerability that allows for arbitrary code execution. This vulnerability is a patch bypass for CVE-2012-1823. | Required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. | Due date: 2024-07-03 | Known ransomware campaign use (KEV): Known | Notes (KEV): This vulnerability affects a common open-source component, third-party library, or a protocol used by different products. Please check with specific vendors for information on patching status. For more information, please see: https://www.php.net/ChangeLog-8.php#; https://nvd.nist.gov/vuln/detail/CVE-2024-4577
Evidence
Type: Vendor Report
Signal: Successful Exploitation
Confidence: 80%
Source: cisa-kev
Details
| Cwes | CWE-78 |
|---|---|
| Feed | CISA Known Exploited Vulnerabilities Catalog |
| Product | PHP |
| Due Date | 2024-07-03 |
| Date Added | 2024-06-12 |
| Vendorproject | PHP Group |
| Vulnerabilityname | PHP-CGI OS Command Injection Vulnerability |
| Knownransomwarecampaignuse | Known |
References
Created: 2026-02-02 12:26 UTC
| Updated: 2026-02-06 07:17 UTC
Shadowserver
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 9d51285f-1b0b-4fc9-bc18-11160e7bc5cf
Exploited: Yes
Characteristics
Severity:
0.0
Timestamps
First Seen: 2024-06-07
Asserted: 2024-06-07
Last Seen: 2026-07-18
Scope
Asset Exposure: ['internet-facing']
Notes: Affected: PHP Foundation / PHP (PHP-CGI) | Class: web-app-framework | Severity: None (CVSS 0) | IoT: no | In CISA KEV: yes | Honeypot connections on 2026-07-18: 1
Evidence
Type: Honeypot
Signal: In The Wild Attempts
Confidence: 70%
Source: shadowserver
Details
| 1D | 1 |
|---|---|
| Iot | no |
| Feed | Shadowserver Foundation honeypot/exploited-vulnerabilities |
| Type | http-scan |
| Class | web-app-framework |
| 7D Avg | 0 |
| Vendor | PHP Foundation |
| 30D Avg | 0 |
| 90D Avg | 0 |
| Product | PHP (PHP-CGI) |
| Cisa Kev | yes |
| Connections | 1 |
| Observation Date | 2026-07-18 |
| Vulnerability Class | CVSS |
| Vulnerability Score | 0 |
| Vulnerability Severity | None |
References
Created: 2026-06-30 09:23 UTC
| Updated: 2026-07-20 01:00 UTC
Previdian
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: c6109d53-1111-4e52-957f-15423e47e468
Exploited: Yes
Timestamps
First Seen: 2024-06-12
Asserted: 2024-06-12
Scope
Notes: KEVIntel entry: Argument Injection in PHP-CGI | Affected: PHP Group / PHP | CVSS: 9.8 (CRITICAL) | EPSS: 0.99987 | Used in malware: yes | Not yet in CISA KEV: False
Evidence
Type: Public Report
Signal: Confirmed Compromise
Confidence: 70%
Source: kevintel
Details
| Feed | KEVIntel (kevintel.com) |
|---|---|
| Title | Argument Injection in PHP-CGI |
| Vendor | PHP Group |
| Product | PHP |
| Added Date | 2024-06-12T00:00:00.000Z |
| Cvss Score | 9.8 |
| Epss Score | 0.99987 |
| Cvss Severity | CRITICAL |
| Epss Percentile | 0.99984 |
| Used In Malware | yes |
| Ahead Of Cisa Kev | None |
| Not Yet In Cisa Kev | False |
References
Created: 2026-06-23 14:05 UTC
| Updated: 2026-07-10 06:14 UTC
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"id": "CVE-2024-4577",
"lastModified": "2024-12-20T18:45:19.983",
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"published": "2024-06-09T20:15:09.550",
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"sourceIdentifier": "security@php.net",
"vulnStatus": "Analyzed",
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"microsoft_vex": {
"current_release_date": "2026-02-19T01:47:59.000Z",
"cve": "CVE-2024-4577",
"id": "msrc_CVE-2024-4577",
"initial_release_date": "2024-06-02T07:00:00.000Z",
"product_status:fixed": "5",
"product_status:known_affected": "5",
"source": "Microsoft CSAF VEX",
"status": "final",
"title": "Argument Injection in PHP-CGI",
"url": "https://msrc.microsoft.com/csaf/vex/2024/msrc_cve-2024-4577.json",
"version": "2"
},
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"id": "CVE-2024-4577",
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"product_status:known_not_affected": "299",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "php: Argument Injection in PHP-CGI",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-4577.json",
"version": "3"
},
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"aggregate_severity": "critical",
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"status": "interim",
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"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2024-4577.json",
"version": "19"
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}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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