漏洞信息
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Vulnerability Title
PraisonAI: SSRF in web_crawl tool via redirect-following and DNS rebinding (validate-then-fetch gap)
Vulnerability Description
PraisonAI is a multi-agent teams system. In versions prior to 1.6.58, the web_crawl tool performs its SSRF check only on the initially supplied URL, allowing the protection to be bypassed so the tool connects to attacker-chosen internal destinations. The check resolves the hostname once with socket.gethostbyname and rejects private/loopback/link-local results, but then passes the URL to a fetcher using httpx.Client(follow_redirects=True) (or urllib.request.urlopen when httpx is absent, which also follows redirects) that re-resolves the hostname at connect time with no further validation. This validate-here/fetch-there gap is exploitable through both HTTP redirects and DNS rebinding. If an attacker can influence URLs passed to web_crawl(), directly or through an agent/tool workflow, they can cause the PraisonAI host to fetch loopback, private-network, or cloud metadata endpoints reachable from that host, with the response body returned in the web_crawl() result. This issue has been fixed in version 1.6.58.
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:L/A:N
Vulnerability Type
检查时间与使用时间(TOCTOU)的竞争条件
Vulnerability Title
Mervin Praison PraisonAI 竞争条件问题漏洞
Vulnerability Description
Mervin Praison PraisonAI是Mervin Praison个人开发者开源的一个低代码多智能体协作框架。 Mervin Praison PraisonAI 1.6.58之前版本存在安全漏洞,该漏洞源于web_crawl工具仅对初始URL进行SSRF检查,存在验证与获取分离的竞争条件,可能通过HTTP重定向和DNS重绑定绕过保护,导致访问回环、私有网络或云元数据端点。
CVSS Information
N/A
Vulnerability Type
N/A