From 524ad4e6ddc04f2f0cfacb33f42c2f022629bbbb Mon Sep 17 00:00:00 2001
From: abbfun <819589789@qq.com>
Date: 星期一, 23 五月 2022 15:36:18 +0800
Subject: [PATCH] fastjson 版本升级 fastjson <= 1.2.80 存在反序列化任意代码执行漏洞

---
 ruoyi-system/src/main/java/com/ruoyi/system/service/impl/SysUserOnlineServiceImpl.java |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/ruoyi-system/src/main/java/com/ruoyi/system/service/impl/SysUserOnlineServiceImpl.java b/ruoyi-system/src/main/java/com/ruoyi/system/service/impl/SysUserOnlineServiceImpl.java
index 2747f6a..347837b 100644
--- a/ruoyi-system/src/main/java/com/ruoyi/system/service/impl/SysUserOnlineServiceImpl.java
+++ b/ruoyi-system/src/main/java/com/ruoyi/system/service/impl/SysUserOnlineServiceImpl.java
@@ -75,7 +75,7 @@
     @Override
     public SysUserOnline loginUserToUserOnline(LoginUser user)
     {
-        if (StringUtils.isNull(user) && StringUtils.isNull(user.getUser()))
+        if (StringUtils.isNull(user) || StringUtils.isNull(user.getUser()))
         {
             return null;
         }

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