Multiple vulnerabilities in Symfony
| Risk | High |
| Patch available | YES |
| Number of vulnerabilities | 2 |
| CVE-ID | CVE-2018-19789 CVE-2018-19790 |
| CWE-ID | CWE-20 CWE-601 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
Symfony Web applications / CMS |
| Vendor | SensioLabs |
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
1) Improper input validation
EUVDB-ID: #VU16614
Risk: High
CVSSv3.1: 8.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2018-19789
CWE-ID:
CWE-20 - Improper input validation
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to an error when using the scalar type hint `string` in a setter method (e.g. `setName(string $name)`) of a class that's the `data_class` of a form A remote unauthenticated attacker can submit a file upload to the corresponding field instead of a normal text input, call `UploadedFile::__toString()` which will then return and disclose the path of the uploaded file. If combined with a local file inclusion issue in certain circumstances a remote attacker can execute arbitrary code with elevated privileges.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
The vulnerability has been fixed in the versions 2.7.50, 2.8.49, 3.4.20, 4.0.15, 4.1.9 and 4.2.1.
Vulnerable software versionsSymfony: 2.7.0 - 4.2.0
External linkshttp://symfony.com/blog/cve-2018-19789-disclosure-of-uploaded-files-full-path
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.
2) Open redirect
EUVDB-ID: #VU16615
Risk: Low
CVSSv3.1: 5.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2018-19790
CWE-ID:
CWE-601 - URL Redirection to Untrusted Site ('Open Redirect')
Exploit availability: No
DescriptionThe vulnerability allows a remote unauthenticated attacker to redirect the target user to external websites.
The weakness exists due to improper sanitization of user-supplied data. A remote attacker can use backslashes in the `_failure_path` input field of login forms, work around the redirection target restrictions and effectively redirect the user to any domain after login.
The vulnerability has been fixed in the versions 2.7.50, 2.8.49, 3.4.20, 4.0.15, 4.1.9 and 4.2.1.
Vulnerable software versionsSymfony: 2.7.0 - 4.2.0
External linkshttp://symfony.com/blog/cve-2018-19790-open-redirect-vulnerability-when-using-security-http
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.
