CVE-2021-26558

Deserialization of Untrusted Data vulnerability of Apache ShardingSphere-UI allows an attacker to inject outer link resources. This issue affects Apache ShardingSphere-UI Apache ShardingSphere-UI version 4.1.1 and later versions; Apache ShardingSphere-UI versions prior to 5.0.0.

Weakness

The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.

Affected Software

Potential Mitigations

• Make fields transient to protect them from deserialization.
• An attempt to serialize and then deserialize a class containing transient fields will result in NULLs where the transient data should be. This is an excellent way to prevent time, environment-based, or sensitive variables from being carried over and used improperly.

Related Attack Patterns

• https://cwe.mitre.org/data/definitions/586.html

References

• http://www.openwall.com/lists/oss-security/2021/11/11/1
• https://lists.apache.org/thread/4gzkm1zb6c97v9gl8lcz8ll5xr8o484c
• http://www.openwall.com/lists/oss-security/2021/11/11/1
• https://lists.apache.org/thread/4gzkm1zb6c97v9gl8lcz8ll5xr8o484c