CVE-2021-33500
Quick assessment
Affected
n/a n/a
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.
PuTTY是Simon Tatham个人开发者的一套免费的Telnet、Rlogin和SSH客户端软件。该软件主要用于对Linux系统进行远程管理。 PuTTY 0.75之前的版本存在安全漏洞，该漏洞源于允许远程服务器通过告诉PuTTY窗口反复高速更改其标题来导致拒绝服务(Windows GUI挂起)导致多次setwindowtextta或SetWindowTextW调用。
Possible ATT&CK Techniques 2 AI
T1059 · Command and Scripting Interpreter T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2021-33500
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
PuTTY before 0.75 on Windows allows remote servers to cause a denial of service (Windows GUI hang) by telling the PuTTY window to change its title repeatedly at high speed, which results in many SetWindowTextA or SetWindowTextW calls. NOTE: the same attack methodology may affect some OS-level GUIs on Linux or other platforms for similar reasons.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
PuTTY 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
PuTTY是Simon Tatham个人开发者的一套免费的Telnet、Rlogin和SSH客户端软件。该软件主要用于对Linux系统进行远程管理。 PuTTY 0.75之前的版本存在安全漏洞，该漏洞源于允许远程服务器通过告诉PuTTY窗口反复高速更改其标题来导致拒绝服务(Windows GUI挂起)导致多次setwindowtextta或SetWindowTextW调用。
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 |
|---|---|---|---|---|
| - | n/a | n/a | - |
|
II. Public POCs for CVE-2021-33500
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Pages for CVE-2021-33500 (1)
-
PuTTY Change Log x_refsource_MISC
Other References for CVE-2021-33500 (2)
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https://docs.ssh-mitm.at/puttydos.html x_refsource_MISC
Same Patch Batch · n/a · 2021-05-21 · 32 CVEs total
| CVE-2021-33514 | 8.8 HIGH | Netgear NETGEAR 操作系统命令注入漏洞 |
| CVE-2018-25012 | libwebp 缓冲区错误漏洞 | |
| CVE-2021-32032 | Trusted Firmware-M 安全漏洞 | |
| CVE-2020-12061 | Nitrokey FIDO U2F 安全漏洞 | |
| CVE-2020-27208 | SoloKeys Solo 加密问题漏洞 | |
| CVE-2021-29415 | elliptic curve cryptography hardware accelerator 安全漏洞 | |
| CVE-2021-29414 | STMicroelectronics STM32L4 注入漏洞 | |
| CVE-2020-27212 | STMicroelectronics STM32L4 注入漏洞 | |
| CVE-2020-27211 | Nordic Semiconductor nRF52840 注入漏洞 | |
| CVE-2020-36328 | libwebp 缓冲区错误漏洞 | |
| CVE-2020-36329 | libwebp 资源管理错误漏洞 | |
| CVE-2020-36330 | libwebp 缓冲区错误漏洞 | |
| CVE-2020-36331 | libwebp 缓冲区错误漏洞 | |
| CVE-2020-36332 | libwebp 资源管理错误漏洞 | |
| CVE-2018-25009 | libwebp 缓冲区错误漏洞 | |
| CVE-2018-25010 | libwebp 缓冲区错误漏洞 | |
| CVE-2018-25011 | libwebp 缓冲区错误漏洞 | |
| CVE-2018-25013 | libwebp 缓冲区错误漏洞 | |
| CVE-2018-25014 | libwebp 安全漏洞 | |
| CVE-2020-23765 | Bludit 代码问题漏洞 |
Showing top 20 of 32 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
V. Comments for CVE-2021-33500
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