CVE-2026-85092— LiME 1.12.0 符号链接导致的任意文件覆盖漏洞
一分钟漏洞结论
影响对象
jtsylve LiME
利用判断
尚无明确在野利用证据，仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。
LiME 1.12.0 及更早版本未能对磁盘采集的输出路径进行充分校验，且在打开操作员提供的路径参数时未使用 标志。这使得非特权本地用户能够覆盖任意由 root 用户拥有的文件。 如果攻击者能够控制输出目录，他们可以创建一个符号链接，该链接使用预期的文件名，并指向任意 root 拥有的文件。当采集过程在内核上下文中运行时，LiME 会跟随该符号链接，从而用内存采集数据流截断（truncates）目标文件。
可能的 ATT&CK 技术 3 AI
T1098 · Account Manipulation T1565 · Data Manipulation T1078.002 · Domain Accounts
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一、 漏洞 CVE-2026-85092 基础信息
漏洞信息
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Vulnerability Title
LiME through 1.12.0 Arbitrary File Overwrite via Symlink Following
来源: CVE Program / CVE List V5
Vulnerability Description
LiME through 1.12.0 fails to validate the disk acquisition output path and does not use O_NOFOLLOW when opening the operator-supplied path parameter, allowing unprivileged local users to overwrite arbitrary root-owned files. An attacker who controls the output directory can create a symbolic link with the expected filename pointing to any root-owned file, and when the acquisition runs in kernel context, LiME follows the link and truncates the target file with the memory acquisition stream.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:H
来源: CVE Program / CVE List V5
Vulnerability Type
在文件访问前对链接解析不恰当(链接跟随)
来源: CVE Program / CVE List V5
受影响产品
二、漏洞 CVE-2026-85092 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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CVE-2026-85092 厂商安全公告 (1)
CVE-2026-85092 概念验证 (1)
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🔗 GitHub - jtsylve/LiME: LiME (formerly DMD) is a Loadable Kernel Module (LKM), which allows the acquisition of volatile memory from Linux and Linux-based devices, such as those powered by Android. The tool supports acquiring memory either to the file system of the device or over the network. LiME is unique in that it is the first tool that allows full memory captures from Android devices. It also minimizes its interaction between user and kernel space processes during acquisition, which allows it to produce memory captures that are more forensically sound than those of other tools designed for Linux memory acquisition. · GitHub 查看完整文章 product
CVE-2026-85092 其他参考 (1)
IV. Related Vulnerabilities
V. Comments for CVE-2026-85092
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