CVE-2015-4050
medium
CVSS v3
—
CVSS v2
4.3
VIR risk
4.3
Description
FragmentListener in the HttpKernel component in 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.
Predictions
Exploit likelihood
20%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2015-4050
Vendor advisory: cve@mitre.org — http://symfony.com/blog/cve-2015-4050-esi-unauthorized-access
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| debian | bookworm | fixed | 2.7.0~beta2+dfsg-2 |
| debian | bullseye | fixed | 2.7.0~beta2+dfsg-2 |
| debian | forky | fixed | 2.7.0~beta2+dfsg-2 |
| debian | sid | fixed | 2.7.0~beta2+dfsg-2 |
| debian | trixie | fixed | 2.7.0~beta2+dfsg-2 |
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| Packagist | symfony/http-kernel | >=2.3.19,<2.3.29 | 2.3.29 |
| Packagist | symfony/http-kernel | >=2.5.4,<2.5.12 | 2.5.12 |
| Packagist | symfony/http-kernel | >=2.6.0,<2.6.8 | 2.6.8 |
| Packagist | symfony/symfony | >=2.3.19,<2.3.29 | 2.3.29 |
| Packagist | symfony/symfony | >=2.4.9,<=2.4.10 | |
| Packagist | symfony/symfony | >=2.5.4,<2.5.12 | 2.5.12 |
| Packagist | symfony/symfony | >=2.6.0,<2.6.8 | 2.6.8 |
| Packagist | symfony/http-kernel | >=2.4.9,<=2.4.10 | |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| sensiolabs | symfony | 2.3.19 | |
| sensiolabs | symfony | 2.3.20 | |
| sensiolabs | symfony | 2.3.21 | |
| sensiolabs | symfony | 2.3.22 | |
| sensiolabs | symfony | 2.3.23 | |
| sensiolabs | symfony | 2.3.24 | |
| sensiolabs | symfony | 2.3.25 | |
| sensiolabs | symfony | 2.3.26 | |
| sensiolabs | symfony | 2.3.27 | |
| sensiolabs | symfony | 2.3.28 | |
| sensiolabs | symfony | 2.4.9 | |
| sensiolabs | symfony | 2.4.10 | |
| sensiolabs | symfony | 2.5.4 | |
| sensiolabs | symfony | 2.5.5 | |
| sensiolabs | symfony | 2.5.6 | |
| sensiolabs | symfony | 2.5.7 | |
| sensiolabs | symfony | 2.5.8 | |
| sensiolabs | symfony | 2.5.9 | |
| sensiolabs | symfony | 2.5.10 | |
| sensiolabs | symfony | 2.5.11 | |
| sensiolabs | symfony | 2.6.0 | |
| sensiolabs | symfony | 2.6.1 | |
| sensiolabs | symfony | 2.6.3 | |
| sensiolabs | symfony | 2.6.4 | |
| sensiolabs | symfony | 2.6.5 | |
| sensiolabs | symfony | 2.6.6 | |
| sensiolabs | symfony | 2.6.7 | |
References
- http://lists.fedoraproject.org/pipermail/package-announce/2015-June/159513.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-June/159603.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-June/159610.html
- http://symfony.com/blog/cve-2015-4050-esi-unauthorized-access
- http://www.debian.org/security/2015/dsa-3276
- http://www.securityfocus.com/bid/74928
- https://nvd.nist.gov/vuln/detail/CVE-2015-4050
- https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/http-kernel/CVE-2015-4050.yaml
- https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/symfony/CVE-2015-4050.yaml
- https://symfony.com/cve-2015-4050
- https://web.archive.org/web/20200228090443/http://www.securityfocus.com/bid/74928
- https://security-tracker.debian.org/tracker/CVE-2015-4050
CWEs
CWE-284
Verify integrity in audit chain (admin only). AS-IS.