Symfony up to 4.4.33/5.3.11 Serializer csv injection
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
5.3 | $0-$5k | 0.00 |
A vulnerability has been found in Symfony up to 4.4.33/5.3.11 and classified as critical. Affected by this vulnerability is some unknown processing of the component Serializer. The manipulation with an unknown input leads to a csv injection vulnerability. The CWE definition for the vulnerability is CWE-1236. The product saves user-provided information into a Comma-Separated Value (CSV) file, but it does not neutralize or incorrectly neutralizes special elements that could be interpreted as a command when the file is opened by a spreadsheet product. As an impact it is known to affect confidentiality.
The weakness was shared 11/25/2021 as GHSA-2xhg-w2g5-w95x. The advisory is shared at github.com. This vulnerability is known as CVE-2021-41270 since 09/15/2021. Neither technical details nor an exploit are publicly available.
Upgrading to version 4.4.34 or 5.3.12 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch 3da6f2d45e7536ccb2a26f52fbaf340917e208a8 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.
Product
Name
Version
- 4.4.0
- 4.4.1
- 4.4.2
- 4.4.3
- 4.4.4
- 4.4.5
- 4.4.6
- 4.4.7
- 4.4.8
- 4.4.9
- 4.4.10
- 4.4.11
- 4.4.12
- 4.4.13
- 4.4.14
- 4.4.15
- 4.4.16
- 4.4.17
- 4.4.18
- 4.4.19
- 4.4.20
- 4.4.21
- 4.4.22
- 4.4.23
- 4.4.24
- 4.4.25
- 4.4.26
- 4.4.27
- 4.4.28
- 4.4.29
- 4.4.30
- 4.4.31
- 4.4.32
- 4.4.33
- 5.3.0
- 5.3.1
- 5.3.2
- 5.3.3
- 5.3.4
- 5.3.5
- 5.3.6
- 5.3.7
- 5.3.8
- 5.3.9
- 5.3.10
- 5.3.11
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 5.4VulDB Meta Temp Score: 5.3
VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍
CNA Base Score: 6.5
CNA Vector (GitHub, Inc.): 🔍
CVSSv2
AV | AC | Au | C | I | A |
---|---|---|---|---|---|
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
---|---|---|---|---|---|
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
Exploiting
Class: Csv injectionCWE: CWE-1236 / CWE-74 / CWE-707
CAPEC: 🔍
ATT&CK: 🔍
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
---|---|---|---|---|
Today | unlock | unlock | unlock | unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Upgrade: Symfony 4.4.34/5.3.12
Patch: 3da6f2d45e7536ccb2a26f52fbaf340917e208a8
Timeline
09/15/2021 🔍11/25/2021 🔍
11/25/2021 🔍
11/27/2021 🔍
Sources
Advisory: GHSA-2xhg-w2g5-w95xStatus: Confirmed
Confirmation: 🔍
CVE: CVE-2021-41270 (🔍)
Entry
Created: 11/25/2021 07:30Updated: 11/27/2021 20:37
Changes: 11/25/2021 07:30 (52), 11/27/2021 20:29 (2), 11/27/2021 20:37 (1)
Complete: 🔍
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