forescout counteract 缺省权限不正确
CVE编号
CVE-2021-28098利用情况
暂无补丁情况
N/A披露时间
2021-04-14漏洞描述
An issue was discovered in Forescout CounterACT before 8.1.4. A local privilege escalation vulnerability is present in the logging function. SecureConnector runs with administrative privileges and writes logs entries to a file in %PROGRAMDATA%\ForeScout SecureConnector\ that has full permissions for the Everyone group. Using a symbolic link allows an attacker to point the log file to a privileged location such as %WINDIR%\System32. The resulting log file adopts the file permissions of the source of the symbolic link (in this case, the Everyone group). The log file in System32 can be replaced and renamed with a malicious DLL for DLL hijacking.解决建议
建议您更新当前系统或软件至最新版，完成漏洞的修复。
参考链接 |
|
|---|---|
| https://docs.forescout.com | |
| https://jordanpotti.com/2021/03/30/forescout-priv-esc-folder-permissions/ | |
| https://www.adversis.io/research/2021/3/30/forescout-secure-connector-local-p... |
受影响软件情况
| # | 类型 | 厂商 | 产品 | 版本 | 影响面 | ||||
| 1 | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 运行在以下环境 | |||||||||
| 应用 | forescout | counteract | * | Up to (excluding) 8.1.4 | |||||
- 攻击路径 本地
- 攻击复杂度 低
- 权限要求 无
- 影响范围 未更改
- 用户交互 需要
- 可用性 高
- 保密性 高
- 完整性 高
| CWE-ID | 漏洞类型 |
| CWE-276 | 缺省权限不正确 |
| CWE-427 | 对搜索路径元素未加控制 |
| CWE-59 | 在文件访问前对链接解析不恰当（链接跟随） |
| CWE-732 | 关键资源的不正确权限授予 |
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