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CVE-2021-43811— Code injection via unsafe YAML loading

Quick assessment

Affected
awslabs sockeye
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Sockeye是一个基于 PyTorch 的用于神经机器翻译的开源序列到序列框架。 Sockeye 存在代码注入漏洞，该漏洞源于Sockeye使用YAML在磁盘上存储模型和数据配置，Sockeye2.3.24以下的版本使用不安全的YAML加载，它可以执行嵌入在配置文件中的任意代码。攻击者可利用该漏洞可以将恶意代码添加到经过训练的模型的配置文件中，并试图说服用户下载并运行它。

CVSS 7.8 · High EPSS 2.45% · P84
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I. Basic Information for CVE-2021-43811

Vulnerability Information
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Vulnerability Title
Code injection via unsafe YAML loading
Source: CVE Program / CVE List V5
Vulnerability Description
Sockeye is an open-source sequence-to-sequence framework for Neural Machine Translation built on PyTorch. Sockeye uses YAML to store model and data configurations on disk. Versions below 2.3.24 use unsafe YAML loading, which can be made to execute arbitrary code embedded in config files. An attacker can add malicious code to the config file of a trained model and attempt to convince users to download and run it. If users run the model, the embedded code will run locally. The issue is fixed in version 2.3.24.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
对生成代码的控制不恰当(代码注入)
Source: CVE Program / CVE List V5
Vulnerability Title
Sockeye 代码注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Sockeye是一个基于 PyTorch 的用于神经机器翻译的开源序列到序列框架。 Sockeye 存在代码注入漏洞，该漏洞源于Sockeye使用YAML在磁盘上存储模型和数据配置，Sockeye2.3.24以下的版本使用不安全的YAML加载，它可以执行嵌入在配置文件中的任意代码。攻击者可利用该漏洞可以将恶意代码添加到经过训练的模型的配置文件中，并试图说服用户下载并运行它。
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
awslabs sockeye < 2.3.24 -

II. Public POCs for CVE-2021-43811

# POC Description Source Link Shenlong Link
1 awslabs/sockeye Code injection via unsafe YAML loading CVE-2021-43811 https://github.com/s-index/CVE-2021-43811 POC Details
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III. Intelligence Information for CVE-2021-43811

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Patches & Fixes for CVE-2021-43811 (1)

Other References for CVE-2021-43811 (1)

IV. Related Vulnerabilities

Same vendor: awslabs
Same weakness: CWE-94

V. Comments for CVE-2021-43811

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