| Titre | Apereo CAS v5.2.6 ReDos regular expression engine denial of service |
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| Description | 1.Vulnerability Name:
Apereo CAS application has a ReDos regular expression engine denial of service vulnerability.
2.Vulnerability level : Medium.
3.Vulnerability discoverer and contributor:蔡超雄 (caichaoxiong)
4.Vulnerability Description
The query parameters of the Apereo CAS v5.2.6 management console (cas-management) are controllable, and malicious attackers can use carefully constructed regular expressions to exhaust server resources .
5.Vulnerability Risk
Sending a large number of requests with malicious regular expressions will cause all threads in the thread pool to execute regular expression matching, consuming a large amount of CPU resources, making it impossible to respond to normal requests, resulting in a denial of service attack. |
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| La source | ⚠️ https://wx.mail.qq.com/s?k=lzDuxVkSRXUZ0bwZEG |
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| Utilisateur | caichaoxiong (UID 84060) |
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| Soumission | 12/04/2025 16:19 (il y a 1 Année) |
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| Modérer | 26/04/2025 10:07 (14 days later) |
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| Statut | Accepté |
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| Entrée VulDB | 306321 [Apereo CAS 5.2.6 ResponseEntity query déni de service] |
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| Points | 17 |
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