CVE-2021-48013— Weaver E-cology 8.0 Unauthenticated Path Traversal via ln.FileDownload
Quick assessment
Affected
Weaver Network Co., Ltd. E-cology
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
泛微 E-cology 8.0 存在路径遍历漏洞，允许未经身份验证的攻击者通过 接口中的 参数读取任意文件。攻击者可构造包含目录遍历序列的 GET 请求，利用该漏洞从服务器获取敏感文件（例如 ）。Shadowserver 基金会于 2023 年 10 月 18 日首次观察到相关利用证据。
Possible ATT&CK Techniques 2 AI
T1083 · File and Directory Discovery T1190 · Exploit Public-Facing ApplicationAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Weaver Network Co., Ltd. | E-cology | 8.0 |
affected |
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I. Basic Information for CVE-2021-48013
Vulnerability Information
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Vulnerability Title
Weaver E-cology 8.0 Unauthenticated Path Traversal via ln.FileDownload
Source: CVE Program / CVE List V5
Vulnerability Description
Weaver E-cology 8.0 contains a path traversal vulnerability that allows unauthenticated attackers to read arbitrary files through the fpath parameter of the /weaver/ln.FileDownload endpoint. Attackers can send crafted GET requests with directory traversal sequences in fpath to retrieve sensitive files such as WEB-INF/web.xml from the server. Exploitation evidence was first observed by the Shadowserver Foundation on 2023-10-18.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Weaver Network Co., Ltd. | E-cology | 8.0 | - |
|
II. Public POCs for CVE-2021-48013
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2021-48013 (1)
Proof of Concept for CVE-2021-48013 (2)
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🔗 PeiQi-WIKI-Book/docs/wiki/oa/泛微OA/泛微OA E-Weaver ln.FileDownload 任意文件读取漏洞.md at main · PeiQi0/PeiQi-WIKI-Book · GitHub technical-description exploit
IV. Related Vulnerabilities
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Weaver E-cology SQL Injection
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-
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Same weakness: CWE-22
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V. Comments for CVE-2021-48013
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