CVE-2020-15148: Unsafe deserialization in Yii 2
First published: Mon Sep 14 2020(Updated: )
### Impact Remote code execution in case application calls `unserialize()` on user input containing specially crafted string. ### Patches 2.0.38 ### Workarounds Add the following to BatchQueryResult.php: ```php public function __sleep() { throw new \BadMethodCallException('Cannot serialize '.__CLASS__); } public function __wakeup() { throw new \BadMethodCallException('Cannot unserialize '.__CLASS__); } ``` ### For more information If you have any questions or comments about this advisory, [contact us through security form](https://www.yiiframework.com/security).
Credit: security-advisories@github.com security-advisories@github.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| composer/yiisoft/yii2 | <2.0.38 | |
| Yiiframework Yii | <2.0.38 | |
| composer/yiisoft/yii2 | <2.0.38 | 2.0.38 |
| <2.0.38 |
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Reference Links
- https://www.yiiframework.com/news/303/yii-2-0-38
- https://github.com/yiisoft/yii2/commit/9abccb96d7c5ddb569f92d1a748f50ee9b3e2b99
- https://github.com/yiisoft/yii2/security/advisories/GHSA-699q-wcff-g9mj
- https://nvd.nist.gov/vuln/detail/CVE-2020-15148
- https://github.com/FriendsOfPHP/security-advisories/blob/master/yiisoft/yii2/CVE-2020-15148.yaml
- https://github.com/advisories/GHSA-699q-wcff-g9mj (Advisory)
Frequently Asked Questions
What is the vulnerability ID of this issue?
The vulnerability ID is CVE-2020-15148.
What is the severity of CVE-2020-15148?
The severity of CVE-2020-15148 is critical.
What is the affected software of CVE-2020-15148?
The affected software of CVE-2020-15148 is Yii 2 (yiisoft/yii2) before version 2.0.38.
How does CVE-2020-15148 work?
CVE-2020-15148 allows remote code execution by calling `unserialize()` on arbitrary user input.
How can I fix CVE-2020-15148?
To fix CVE-2020-15148, upgrade to version 2.0.38 of Yii 2 (yiisoft/yii2) or apply the suggested workaround in the linked advisory.
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