Apache Tapestry 5.4.0 < 5.6.2 和 5.7.0 < 5.7.1 版允許未經驗證的攻擊者透過特製的要求存取 Class 檔案。如果「tapestry.hmac-passphrase」的值被復原，攻擊者可惡意利用此弱點，在傳送表單時，透過「t:formdata」參數的值造成任意程式碼執行。

Apache Tapestry バージョン 5.4.0 < 5.6.2 および 5.7.0 < 5.7.1 により、認証されていない攻撃者が、特別に細工されたリクエストを介して Class ファイルにアクセスする可能性があります。「tapestry.hmac-passphrase」の値が回復されると、この脆弱性が悪用され、フォームの送信時に「t:formdata」パラメーターの値を介して任意のコードが実行される可能性があります。

Apache Tapestry 版本 5.4.0 < 5.6.2 和 5.7.0 < 5.7.1 允许未经身份验证的攻击者通过特别构建的请求访问类文件。如果“tapestry.hmac-passphrase”的值被恢复，攻击者可利用此漏洞，在发送表单时，通过“t:formdata”参数的值造成任意代码执行。

Apache Tapestry versions 5.4.0 < 5.6.2 and 5.7.0 < 5.7.1 allows an unauthenticated attacker to access Class files via a specially crafted request. If the value of 'tapestry.hmac-passphrase' is recovered, this vulnerability can be exploited to obtain arbitrary code execution through the value of the 't:formdata' parameter when a form is sent.

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - A critical unauthenticated remote code execution vulnerability was found all recent versions of Apache
    Tapestry. The affected versions include 5.4.5, 5.5.0, 5.6.2 and 5.7.0. The vulnerability I have found is a
    bypass of the fix for CVE-2019-0195. Recap: Before the fix of CVE-2019-0195 it was possible to download
    arbitrary class files from the classpath by providing a crafted asset file URL. An attacker was able to
    download the file `AppModule.class` by requesting the URL
    `http://localhost:8080/assets/something/services/AppModule.class` which contains a HMAC secret key. The
    fix for that bug was a blacklist filter that checks if the URL ends with `.class`, `.properties` or
    `.xml`. Bypass: Unfortunately, the blacklist solution can simply be bypassed by appending a `/` at the end
    of the URL: `http://localhost:8080/assets/something/services/AppModule.class/` The slash is stripped after
    the blacklist check and the file `AppModule.class` is loaded into the response. This class usually
    contains the HMAC secret key which is used to sign serialized Java objects. With the knowledge of that key
    an attacker can sign a Java gadget chain that leads to RCE (e.g. CommonsBeanUtils1 from ysoserial).
    Solution for this vulnerability: * For Apache Tapestry 5.4.0 to 5.6.1, upgrade to 5.6.2 or later. * For
    Apache Tapestry 5.7.0, upgrade to 5.7.1 or later. (CVE-2021-27850)

ID	名前	製品	ファミリー	公開日	更新日	深刻度
114448	Apache Tapestry 任意檔案讀取	Web App Scanning	Component Vulnerability	2024/10/15	2024/10/15	critical
114448	Apache Tapestry の任意のファイル読み取り	Web App Scanning	Component Vulnerability	2024/10/15	2024/10/15	critical
114448	Apache Tapestry 任意文件读取	Web App Scanning	Component Vulnerability	2024/10/15	2024/10/15	critical
114448	Apache Tapestry Arbitrary File Read	Web App Scanning	Component Vulnerability	2024/10/15	2024/10/15	critical
416998	SCA: security update for org.apache.tapestry:tapestry-core (GHSA-mj8x-cpr8-x39h)	Tenable Cloud Security	SCA Checks	2025/1/23	2026/8/7	critical
416998	SCA: security update for org.apache.tapestry:tapestry-core (GHSA-mj8x-cpr8-x39h)	Tenable Self-Hosted Container Security	SCA Checks	2025/1/23	2026/8/7	critical

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