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CVE-2021-22946

Quick assessment

Affected
n/a https://github.com/curl/curl
Exploitation
High exploitation probability; assess promptly
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

HAXX Haxx libcurl是瑞典HAXX公司的一个免费、开源的客户端URL传输库。该库支持FTP、FTPS、TFTP、HTTP等。 Haxx curl 存在安全漏洞，目前尚无此漏洞的相关信息，请随时关注CNNVD或厂商公告。

AI Predicted 7.5 Difficulty: Moderate EPSS 4.54% · P91
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I. Basic Information for CVE-2021-22946

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A user can tell curl >= 7.20.0 and <= 7.78.0 to require a successful upgrade to TLS when speaking to an IMAP, POP3 or FTP server (`--ssl-reqd` on the command line or`CURLOPT_USE_SSL` set to `CURLUSESSL_CONTROL` or `CURLUSESSL_ALL` withlibcurl). This requirement could be bypassed if the server would return a properly crafted but perfectly legitimate response.This flaw would then make curl silently continue its operations **withoutTLS** contrary to the instructions and expectations, exposing possibly sensitive data in clear text over the network.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
缺少必要的密码学步骤
Source: CVE Program / CVE List V5
Vulnerability Title
libcurl 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
HAXX Haxx libcurl是瑞典HAXX公司的一个免费、开源的客户端URL传输库。该库支持FTP、FTPS、TFTP、HTTP等。 Haxx curl 存在安全漏洞，目前尚无此漏洞的相关信息，请随时关注CNNVD或厂商公告。
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
- https://github.com/curl/curl curl 7.20.0 to and including 7.78.0 -

II. Public POCs for CVE-2021-22946

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III. Intelligence Information for CVE-2021-22946

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Vendor Advisories for CVE-2021-22946 (10)

Mailing List Discussions for CVE-2021-22946 (5)

Other References for CVE-2021-22946 (1)

Same Patch Batch · n/a · 2021-09-29 · 21 CVEs total

CVE-2021-23446 7.5 HIGH Regular Expression Denial of Service (ReDoS)
CVE-2021-41573 7.5 HIGH Hitachi Content Platform Anywhere (HCP-AW) 信息泄露漏洞
CVE-2021-35943 Couchbase Server 授权问题漏洞
CVE-2021-22947 Migration Toolkit For Containers 数据伪造问题漏洞
CVE-2021-33923 Confluent Ansible 安全漏洞
CVE-2021-33924 Confluent Ansible 安全漏洞
CVE-2021-40651 OS4Ed OpenSIS 路径遍历漏洞
CVE-2021-41732 Zeek 环境问题漏洞
CVE-2021-41764 Streama 跨站请求伪造漏洞
CVE-2021-35945 Couchbase Server 缓冲区错误漏洞
CVE-2021-41826 PlaceOs Authentication Service 输入验证错误漏洞
CVE-2021-35944 Couchbase Server 缓冲区错误漏洞
CVE-2021-3653 KVM 权限许可和访问控制问题漏洞
CVE-2021-41795 Apple Safari 安全漏洞
CVE-2020-20128 LaraCms 信息泄露漏洞
CVE-2020-20129 LaraCms 跨站脚本漏洞
CVE-2020-20131 LaraCms 跨站脚本漏洞
CVE-2020-20781 UCMS 跨站脚本漏洞
CVE-2021-41821 Wazuh 数字错误漏洞
CVE-2021-41824 Pixel＆tonic Craft CMS 代码注入漏洞

IV. Related Vulnerabilities

Same product: https://github.com/curl/curl
Same vendor: n/a
Same weakness: CWE-325

V. Comments for CVE-2021-22946

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