CVE-2021-21424
13.05.2021, 16:15
Symfony is a PHP framework for web and console applications and a set of reusable PHP components. The ability to enumerate users was possible without relevant permissions due to different handling depending on whether the user existed or not when attempting to use the switch users functionality. We now ensure that 403s are returned whether the user exists or not if a user cannot switch to a user or if the user does not exist. The patch for this issue is available for branch 3.4.Enginsight
| Vendor | Product | Version |
|---|---|---|
| sensiolabs | symfony | 2.8.0 ≤ 𝑥 < 3.4.48 |
| sensiolabs | symfony | 4.0.0 ≤ 𝑥 < 4.4.23 |
| sensiolabs | symfony | 5.0.0 ≤ 𝑥 < 5.2.8 |
𝑥
= Vulnerable software versions
Debian Releases
Ubuntu Releases
Common Weakness Enumeration
- CWE-200 - Exposure of Sensitive Information to an Unauthorized ActorThe product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.
- CWE-203 - Observable DiscrepancyThe product behaves differently or sends different responses under different circumstances in a way that is observable to an unauthorized actor, which exposes security-relevant information about the state of the product, such as whether a particular operation was successful or not.
References