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CVE-2020-12062

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.

OpenSSH（OpenBSD Secure Shell）是OpenBSD计划组的一套用于安全访问远程计算机的连接工具。该工具是SSH协议的开源实现，支持对所有的传输进行加密，可有效阻止窃听、连接劫持以及其他网络级的攻击。 OpenSSH 8.2版本中存在安全漏洞，该漏洞源于在utimes系统调用失败时，scp客户端错误地向服务器发送了重复的响应。攻击者可通过在远程服务器上创建子目录利用该漏洞覆盖客户端下载目录中的任意文件。

AI Predicted 6.5 Difficulty: Moderate EPSS 2.18% · P81

Possible ATT&CK Techniques 1 AI

T1105 · Ingress Tool Transfer
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I. Basic Information for CVE-2020-12062

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
The scp client in OpenSSH 8.2 incorrectly sends duplicate responses to the server upon a utimes system call failure, which allows a malicious unprivileged user on the remote server to overwrite arbitrary files in the client's download directory by creating a crafted subdirectory anywhere on the remote server. The victim must use the command scp -rp to download a file hierarchy containing, anywhere inside, this crafted subdirectory. NOTE: the vendor points out that "this attack can achieve no more than a hostile peer is already able to achieve within the scp protocol" and "utimes does not fail under normal circumstances.
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
OpenSSH 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
OpenSSH（OpenBSD Secure Shell）是OpenBSD计划组的一套用于安全访问远程计算机的连接工具。该工具是SSH协议的开源实现，支持对所有的传输进行加密，可有效阻止窃听、连接劫持以及其他网络级的攻击。 OpenSSH 8.2版本中存在安全漏洞，该漏洞源于在utimes系统调用失败时，scp客户端错误地向服务器发送了重复的响应。攻击者可通过在远程服务器上创建子目录利用该漏洞覆盖客户端下载目录中的任意文件。
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-2020-12062

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III. Intelligence Information for CVE-2020-12062

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Patches & Fixes for CVE-2020-12062 (2)

Mailing List Discussions for CVE-2020-12062 (1)

Other References for CVE-2020-12062 (1)

Same Patch Batch · n/a · 2020-06-01 · 26 CVEs total

CVE-2014-8937 Lexiglot 资源管理错误漏洞
CVE-2019-15709 Fortinet FortiAP-S、FortiAP-W2和FortiAP-U 输入验证错误漏洞
CVE-2020-13758 Bitrix24 Web Application Firewall 跨站脚本漏洞
CVE-2020-13757 Python-RSA 加密问题漏洞
CVE-2020-13695 QuickBox 安全漏洞
CVE-2014-9702 2pi Software Cmfive 安全漏洞
CVE-2014-7173 FarSite Communications FarLinX X25 Gateway 操作系统命令注入漏洞
CVE-2014-7175 FarSite Communications FarLinX X25 Gateway 缓冲区错误漏洞
CVE-2014-7174 FarSite Communications FarLinX X25 Gateway 路径遍历漏洞
CVE-2014-8941 Lexiglot SQL注入漏洞
CVE-2014-8942 Lexiglot 跨站请求伪造漏洞
CVE-2014-8943 Lexiglot 代码问题漏洞
CVE-2014-8944 Lexiglot 跨站脚本漏洞
CVE-2020-6868 ZTE F680 输入验证错误漏洞
CVE-2014-8938 Lexiglot 安全漏洞
CVE-2014-8939 Lexiglot 路径遍历漏洞
CVE-2014-8940 Lexiglot 信息泄露漏洞
CVE-2014-8945 Lexiglot 操作系统命令注入漏洞
CVE-2020-13694 QuickBox 操作系统命令注入漏洞
CVE-2020-13448 QuickBox 操作系统命令注入漏洞

Showing top 20 of 26 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: n/a
Same vendor: n/a

V. Comments for CVE-2020-12062

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