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CVE-2021-41270
Detail
Modified
This vulnerability has been modified since it was last analyzed by the NVD. It is awaiting reanalysis which may result in further changes to the information provided.
Description
Symfony/Serializer handles serializing and deserializing data structures for Symfony, a PHP framework for web and console applications and a set of reusable PHP components. Symfony versions 4.1.0 before 4.4.35 and versions 5.0.0 before 5.3.12 are vulnerable to CSV injection, also known as formula injection. In Symfony 4.1, maintainers added the opt-in `csv_escape_formulas` option in the `CsvEncoder`, to prefix all cells starting with `=`, `+`, `-` or `@` with a tab `\t`. Since then, OWASP added 2 chars in that list: Tab (0x09) and Carriage return (0x0D). This makes the previous prefix char (Tab `\t`) part of the vulnerable characters, and OWASP suggests using the single quote `'` for prefixing the value. Starting with versions 4.4.34 and 5.3.12, Symfony now follows the OWASP recommendations and uses the single quote `'` to prefix formulas and add the prefix to cells starting by `\t`, `\r` as well as `=`, `+`, `-` and `@`.
NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.
Note: NVD Analysts have not published a CVSS score for this CVE at this time. NVD Analysts use publicly available information at the time of analysis to associate CVSS vector strings. A CNA provided score within the CVE List has been displayed.
NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.
Note: NVD Analysts have published a CVSS score for this CVE based on publicly available information at the time of analysis. The CNA has not provided a score within the CVE List.
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CVE Modified by GitHub, Inc.11/06/2023 10:38:54 PM
Action
Type
Old Value
New Value
Added
Reference
GitHub, Inc. https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3BPT4SF6SIXFMZARDWED5T32J7JEH3EP/ [No types assigned]
Added
Reference
GitHub, Inc. https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QSREFD2TJT5LWKM6S4MD3W26NQQ5WJUP/ [No types assigned]
Removed
Reference
GitHub, Inc. https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3BPT4SF6SIXFMZARDWED5T32J7JEH3EP/
Removed
Reference
GitHub, Inc. https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QSREFD2TJT5LWKM6S4MD3W26NQQ5WJUP/
Modified Analysis by NIST12/15/2021 12:35:01 PM
Action
Type
Old Value
New Value
Added
CPE Configuration
OR
*cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
*cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
Changed
Reference Type
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3BPT4SF6SIXFMZARDWED5T32J7JEH3EP/ No Types Assigned
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3BPT4SF6SIXFMZARDWED5T32J7JEH3EP/ Mailing List, Third Party Advisory
Changed
Reference Type
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QSREFD2TJT5LWKM6S4MD3W26NQQ5WJUP/ No Types Assigned
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QSREFD2TJT5LWKM6S4MD3W26NQQ5WJUP/ Mailing List, Third Party Advisory
CVE Modified by GitHub, Inc.12/02/2021 10:15:07 PM
OR
*cpe:2.3:a:sensiolabs:symfony:*:*:*:*:*:*:*:* versions from (including) 4.1.0 up to (excluding) 4.4.35
*cpe:2.3:a:sensiolabs:symfony:*:*:*:*:*:*:*:* versions from (including) 5.0.0 up to (excluding) 5.3.12
Added
CVSS V2
NIST (AV:N/AC:L/Au:S/C:P/I:N/A:N)
Changed
Reference Type
https://github.com/symfony/symfony/commit/3da6f2d45e7536ccb2a26f52fbaf340917e208a8 No Types Assigned
https://github.com/symfony/symfony/commit/3da6f2d45e7536ccb2a26f52fbaf340917e208a8 Patch, Third Party Advisory
Changed
Reference Type
https://github.com/symfony/symfony/pull/44243 No Types Assigned
https://github.com/symfony/symfony/pull/44243 Patch, Third Party Advisory
Changed
Reference Type
https://github.com/symfony/symfony/releases/tag/v5.3.12 No Types Assigned
https://github.com/symfony/symfony/releases/tag/v5.3.12 Release Notes, Third Party Advisory
Changed
Reference Type
https://github.com/symfony/symfony/security/advisories/GHSA-2xhg-w2g5-w95x No Types Assigned
https://github.com/symfony/symfony/security/advisories/GHSA-2xhg-w2g5-w95x Patch, Third Party Advisory
Symfony/Serializer handles serializing and deserializing data structures for Symfony, a PHP framework for web and console applications and a set of reusable PHP components. Symfony versions 4.1.0 before 4.4.35 and versions 5.0.0 before 5.3.12 are vulnerable to CSV injection, also known as formula injection. In Symfony 4.1, maintainers added the opt-in `csv_escape_formulas` option in the `CsvEncoder`, to prefix all cells starting with `=`, `+`, `-` or `@` with a tab `\t`. Since then, OWASP added
Symfony/Serializer handles serializing and deserializing data structures for Symfony, a PHP framework for web and console applications and a set of reusable PHP components. Symfony versions 4.1.0 before 4.4.35 and versions 5.0.0 before 5.3.12 are vulnerable to CSV injection, also known as formula injection. In Symfony 4.1, maintainers added the opt-in `csv_escape_formulas` option in the `CsvEncoder`, to prefix all cells starting with `=`, `+`, `-` or `@` with a tab `\t`. Since then, OWASP added
Quick Info
CVE Dictionary Entry: CVE-2021-41270 NVD
Published Date: 11/24/2021 NVD
Last Modified: 11/06/2023
Source: GitHub, Inc.
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