CVE-2020-13757
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.
Python-RSA是荷兰SYBREN A.STÜVEL软件开发者的一款支持加密和解密、签名、验证签名以及密钥生成的Python库。 Python-RSA 4.1之前版本中存在加密问题漏洞。攻击者可利用该漏洞推断应用程序是否使用Python-RSA，所接受的密文的长度是否影响应用程序运行或造成其他危害。
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I. Basic Information for CVE-2020-13757
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Python-RSA before 4.1 ignores leading '\0' bytes during decryption of ciphertext. This could conceivably have a security-relevant impact, e.g., by helping an attacker to infer that an application uses Python-RSA, or if the length of accepted ciphertext affects application behavior (such as by causing excessive memory allocation).
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
Python-RSA 加密问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Python-RSA是荷兰SYBREN A.STÜVEL软件开发者的一款支持加密和解密、签名、验证签名以及密钥生成的Python库。 Python-RSA 4.1之前版本中存在加密问题漏洞。攻击者可利用该漏洞推断应用程序是否使用Python-RSA，所接受的密文的长度是否影响应用程序运行或造成其他危害。
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 | - |
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II. Public POCs for CVE-2020-13757
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2020-13757 (1)
Mailing List Discussions for CVE-2020-13757 (1)
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https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZYB65VNILRBTXL6EITQTH2PZPK7I23MW/ vendor-advisory x_refsource_FEDORA
Other References for CVE-2020-13757 (2)
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https://github.com/sybrenstuvel/python-rsa/issues/146 x_refsource_MISC
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https://github.com/sybrenstuvel/python-rsa/issues/146#issuecomment-641845667 x_refsource_CONFIRM
Same Patch Batch · n/a · 2020-06-01 · 26 CVEs total
| CVE-2014-8938 | Lexiglot 安全漏洞 | |
| 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-2020-13695 | 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-2014-8937 | Lexiglot 资源管理错误漏洞 | |
| CVE-2020-6868 | ZTE F680 输入验证错误漏洞 | |
| 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-2020-12062 | OpenSSH 输入验证错误漏洞 | |
| 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
V. Comments for CVE-2020-13757
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