Vulnerability Details CVE-2020-15094
In Symfony before versions 4.4.13 and 5.1.5, the CachingHttpClient class from the HttpClient Symfony component relies on the HttpCache class to handle requests. HttpCache uses internal headers like X-Body-Eval and X-Body-File to control the restoration of cached responses. The class was initially written with surrogate caching and ESI support in mind (all HTTP calls come from a trusted backend in that scenario). But when used by CachingHttpClient and if an attacker can control the response for a request being made by the CachingHttpClient, remote code execution is possible. This has been fixed in versions 4.4.13 and 5.1.5.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.022
EPSS Ranking 83.9%
CVSS Severity
CVSS v3 Score 8.0
CVSS v2 Score 7.5
References
- https://github.com/symfony/symfony/commit/d9910e0b33a2e0f993abff41c6fbc86951b66d78
- https://github.com/symfony/symfony/security/advisories/GHSA-754h-5r27-7x3r
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HNGUWOEETOFVH4PN3I3YO4QZHQ4AUKF3/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VAQJXAKWPMWB7OL6QPG2ZSEQZYYPU5RC/
- https://packagist.org/packages/symfony/http-kernel
- https://packagist.org/packages/symfony/symfony
- https://github.com/symfony/symfony/commit/d9910e0b33a2e0f993abff41c6fbc86951b66d78
- https://github.com/symfony/symfony/security/advisories/GHSA-754h-5r27-7x3r
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HNGUWOEETOFVH4PN3I3YO4QZHQ4AUKF3/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VAQJXAKWPMWB7OL6QPG2ZSEQZYYPU5RC/
- https://packagist.org/packages/symfony/http-kernel
- https://packagist.org/packages/symfony/symfony
Products affected by CVE-2020-15094
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cpe:2.3:a:sensiolabs:httpclient:4.4.0
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cpe:2.3:a:sensiolabs:httpclient:4.4.1
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cpe:2.3:a:sensiolabs:httpclient:4.4.10
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cpe:2.3:a:sensiolabs:httpclient:4.4.11
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cpe:2.3:a:sensiolabs:httpclient:4.4.12
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cpe:2.3:a:sensiolabs:httpclient:4.4.2
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cpe:2.3:a:sensiolabs:httpclient:4.4.3
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cpe:2.3:a:sensiolabs:httpclient:4.4.4
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cpe:2.3:a:sensiolabs:httpclient:4.4.5
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cpe:2.3:a:sensiolabs:httpclient:4.4.6
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cpe:2.3:a:sensiolabs:httpclient:4.4.7
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cpe:2.3:a:sensiolabs:httpclient:4.4.8
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cpe:2.3:a:sensiolabs:httpclient:4.4.9
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cpe:2.3:a:sensiolabs:httpclient:5.1.0
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cpe:2.3:a:sensiolabs:httpclient:5.1.1
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cpe:2.3:a:sensiolabs:httpclient:5.1.2
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cpe:2.3:a:sensiolabs:httpclient:5.1.3
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cpe:2.3:a:sensiolabs:httpclient:5.1.4
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cpe:2.3:a:sensiolabs:symfony:4.4.0
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cpe:2.3:a:sensiolabs:symfony:4.4.1
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cpe:2.3:a:sensiolabs:symfony:4.4.10
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cpe:2.3:a:sensiolabs:symfony:4.4.11
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cpe:2.3:a:sensiolabs:symfony:4.4.12
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cpe:2.3:a:sensiolabs:symfony:4.4.2
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cpe:2.3:a:sensiolabs:symfony:4.4.3
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cpe:2.3:a:sensiolabs:symfony:4.4.4
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cpe:2.3:a:sensiolabs:symfony:4.4.5
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cpe:2.3:a:sensiolabs:symfony:4.4.6
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cpe:2.3:a:sensiolabs:symfony:4.4.7
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cpe:2.3:a:sensiolabs:symfony:4.4.8
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cpe:2.3:a:sensiolabs:symfony:4.4.9
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cpe:2.3:a:sensiolabs:symfony:5.1.0
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cpe:2.3:a:sensiolabs:symfony:5.1.1
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cpe:2.3:a:sensiolabs:symfony:5.1.2
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cpe:2.3:a:sensiolabs:symfony:5.1.3
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cpe:2.3:a:sensiolabs:symfony:5.1.4
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cpe:2.3:o:fedoraproject:fedora:32
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cpe:2.3:o:fedoraproject:fedora:33