CVE-2020-15163— Invalid root may become trusted root in The Update Framework (TUF)
Quick assessment
Affected
theupdateframework tuf
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.
Python是Python软件基金会的一套开源的、面向对象的程序设计语言。该语言具有可扩展、支持模块和包、支持多种平台等特点。 Python TUF 0.12 中存在安全漏洞。该漏洞源于下载未验证，攻击者可利用该漏洞进行中间人攻击。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2020-15163
Vulnerability Information
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Vulnerability Title
Invalid root may become trusted root in The Update Framework (TUF)
Source: CVE Program / CVE List V5
Vulnerability Description
Python TUF (The Update Framework) reference implementation before version 0.12 it will incorrectly trust a previously downloaded root metadata file which failed verification at download time. This allows an attacker who is able to serve multiple new versions of root metadata (i.e. by a person-in-the-middle attack) culminating in a version which has not been correctly signed to control the trust chain for future updates. This is fixed in version 0.12 and newer.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制不正确
Source: CVE Program / CVE List V5
Vulnerability Title
Python 数据伪造问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Python是Python软件基金会的一套开源的、面向对象的程序设计语言。该语言具有可扩展、支持模块和包、支持多种平台等特点。 Python TUF 0.12 中存在安全漏洞。该漏洞源于下载未验证，攻击者可利用该漏洞进行中间人攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| theupdateframework | tuf | < 0.12 | - |
|
II. Public POCs for CVE-2020-15163
| # | POC Description | Source Link | Shenlong Link |
|---|
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Patches & Fixes for CVE-2020-15163 (1)
Vendor Advisories for CVE-2020-15163 (1)
Other References for CVE-2020-15163 (2)
-
https://pypi.org/project/tuf x_refsource_MISC
-
https://github.com/theupdateframework/tuf/releases/tag/v0.12.0 x_refsource_MISC
IV. Related Vulnerabilities
Same vendor: theupdateframework
-
CVE-2026-24686
go-tuf Path Traversal in TAP 4 Multirepo Client Allows Arbit -
CVE-2026-23992
go-tuf improperly validates the configured threshold for del -
CVE-2026-23991
go-tuf affected by client DoS via malformed server response -
CVE-2024-47534
Incorrect delegation lookups can make go-tuf download the wr -
CVE-2022-29173
No protection against rollback attacks in go-tuf
Same weakness: CWE-863
V. Comments for CVE-2020-15163
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