Apache Spark, Apache Spark: RPC encryption defaults to unauthenticated AES-CTR mode, enabling man-in-the-middle ciphertext modification attacks

This issue affects Apache Spark versions before 3.4.4, 3.5.2 and 4.0.0. Apache Spark versions before 4.0.0, 3.5.2 and 3.4.4 use an insecure default network encryption cipher for RPC communication between nodes. When spark.network.crypto.enabled is set to true (it is set to false by default), but spark.network.crypto.cipher is not explicitly configured, Spark defaults to AES in CTR mode (AES/CTR/NoPadding), which provides encryption without authentication. This vulnerability allows a man-in-the-middle attacker to modify encrypted RPC traffic undetected by flipping bits in ciphertext, potentially compromising heartbeat messages or application data and affecting the integrity of Spark workflows. To mitigate this issue, users should either configure spark.network.crypto.cipher to AES/GCM/NoPadding to enable authenticated encryption or enable SSL encryption by setting spark.ssl.enabled to true, which provides stronger transport security.

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密码学签名的验证不恰当

Apache Spark 安全漏洞

Apache Spark是美国阿帕奇（Apache）基金会的一款支持非循环数据流和内存计算的大规模数据处理引擎。 Apache Spark 3.4.4之前版本、3.5.2之前版本和4.0.0之前版本存在安全漏洞，该漏洞源于使用不安全的默认网络加密密码进行节点间RPC通信，可能导致中间人攻击修改加密RPC流量。

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