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CVE-2021-28099

Quick assessment

Affected
n/a Netflix OSS Hollow
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.

Netflix Hollow是美国Netflix公司的一个 Java 库和工具集，用于将内存数据集从单个生产者传播到许多消费者，以实现高性能只读访问。 Netflix Hollow 存在安全漏洞，攻击者可利用该漏洞可以预先创建具有广泛权限的目录。

AI Predicted 8.1 Difficulty: Moderate EPSS 0.24% · P16

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter
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I. Basic Information for CVE-2021-28099

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
In Netflix OSS Hollow, since the Files.exists(parent) is run before creating the directories, an attacker can pre-create these directories with wide permissions. Additionally, since an insecure source of randomness is used, the file names to be created can be deterministically calculated.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Netflix Hollow 安全特征问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Netflix Hollow是美国Netflix公司的一个 Java 库和工具集，用于将内存数据集从单个生产者传播到许多消费者，以实现高性能只读访问。 Netflix Hollow 存在安全漏洞，攻击者可利用该漏洞可以预先创建具有广泛权限的目录。
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
- Netflix OSS Hollow All versions -

II. Public POCs for CVE-2021-28099

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2021-28099

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Other References for CVE-2021-28099 (1)

Same Patch Batch · n/a · 2021-03-23 · 39 CVEs total

CVE-2021-29068 9.9 CRITICAL Netgear NETGEAR 缓冲区错误漏洞
CVE-2021-29066 9.6 CRITICAL Netgear NETGEAR 授权问题漏洞
CVE-2021-29067 9.6 CRITICAL Netgear NETGEAR 授权问题漏洞
CVE-2021-29065 9.6 CRITICAL Netgear NETGEAR RBR850 授权问题漏洞
CVE-2021-29071 9.6 CRITICAL Netgear NETGEAR 命令注入漏洞
CVE-2021-29076 9.6 CRITICAL Netgear NETGEAR 命令注入漏洞
CVE-2021-29077 9.6 CRITICAL 多款Netgear产品命令注入漏洞
CVE-2021-29078 9.6 CRITICAL 多款Netgear产品命令注入漏洞
CVE-2021-29079 9.6 CRITICAL Netgear NETGEAR 命令注入漏洞
CVE-2021-29082 9.6 CRITICAL 多款Netgear产品信息泄露漏洞
CVE-2021-29075 8.4 HIGH 多款Netgear产品缓冲区错误漏洞
CVE-2021-29074 8.4 HIGH NETGEAR 多款产品缓冲区错误漏洞
CVE-2021-29072 8.4 HIGH Netgear NETGEAR 命令注入漏洞
CVE-2021-29070 8.4 HIGH Netgear NETGEAR 命令注入漏洞
CVE-2021-29081 8.4 HIGH 多款Netgear产品缓冲区错误漏洞
CVE-2021-29080 8.1 HIGH Netgear NETGEAR 授权问题漏洞
CVE-2021-29073 7.6 HIGH Netgear NETGEAR 缓冲区错误漏洞
CVE-2020-28503 7.3 HIGH Prototype Pollution
CVE-2021-29069 7.3 HIGH 多款Netgear产品命令注入漏洞
CVE-2021-23362 5.3 MEDIUM Regular Expression Denial of Service (ReDoS)

Showing top 20 of 39 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same vendor: n/a

V. Comments for CVE-2021-28099

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