漏洞信息
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Vulnerability Title
MISP CurlClient TLS Peer Verification Disabled by Default Enables Man-in-the-Middle Attacks
Vulnerability Description
MISP contains an improper TLS certificate validation vulnerability in CurlClient. The CurlClient::$verifyPeer property was not explicitly initialized and therefore defaulted to null. When passed to cURL, this value effectively disabled TLS peer verification unless the calling code explicitly enabled it.
As a result, HTTPS connections made through affected CurlClient instances could accept certificates that were not issued by a trusted certificate authority. An attacker capable of intercepting or manipulating network traffic between a MISP instance and a remote HTTPS service could impersonate the remote endpoint and perform a man-in-the-middle attack.
Successful exploitation could allow an attacker to observe sensitive information transmitted by MISP, including authentication material or exchanged threat intelligence, and to modify responses returned to the MISP instance. The impact depends on the functionality using CurlClient and the data exchanged with the remote service.
The patch enables TLS peer verification by default while preserving explicit support for configured self-signed certificates. It also corrects the self-signed certificate handling in SyncTool so that peer verification is disabled only when no pinned CA certificate is configured.
CVSS Information
CVSS:4.0/AV:A/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
Vulnerability Type
证书验证不恰当
Vulnerability Title
MISP 加密问题漏洞
Vulnerability Description
MISP是MISP组织开源的一套开源的软件解决方案。该产品用于收集、存储、分发、共享网络安全指标,并具有威胁网络安全事件分析和恶意软件分析等功能。 MISP 2.5.45及之前版本存在加密问题漏洞,该漏洞源于CurlClient中TLS证书验证不当,其verifyPeer属性未显式初始化导致TLS对端验证被禁用,可能允许攻击者拦截或篡改网络流量,实施中间人攻击,导致敏感信息泄露及响应被修改。
CVSS Information
N/A
Vulnerability Type
N/A