漏洞信息
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Vulnerability Title
Webhook SSRF guard bypassed by IPv6 transition addresses (NAT64/6to4/Teredo pass is_global check) in vulnerability-lookup
Vulnerability Description
The webhook URL validator in `website/notifications/webhooks.py` uses
`ip.is_global` to reject non-public addresses after DNS resolution. IPv6
transition addresses (NAT64 `64:ff9b::/96`, 6to4 `2002::/16`, Teredo
`2001:0000::/32`) are classified as globally routable by IANA, so `is_global`
returns `True` even when the embedded IPv4 targets a private, loopback, or
cloud metadata destination. An attacker can register a webhook pointing at a
hostname that resolves to a transition address to bypass the SSRF guard and
exfiltrate vulnerability data to an internal endpoint.
The vulnerability was introduced on a non-release version. The fix was already done on HEAD. It only affects
organisation running the HEAD.
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N
Vulnerability Type
服务端请求伪造(SSRF)
Vulnerability Title
Vulnerability-Lookup 服务端请求伪造漏洞
Vulnerability Description
Vulnerability-Lookup是Vulnerability-Lookup组织开源的一个漏洞查询与扫描工具。 Vulnerability-Lookup存在服务端请求伪造漏洞,该漏洞源于webhook URL验证器在DNS解析后使用ip.is_global拒绝非公共地址,但IPv6过渡地址(NAT64、6to4、Teredo)被IANA归类为全局可路由,导致is_global返回True,即使内嵌IPv4目标为私有、回环或云元数据地址,可能允许攻击者绕过SSRF防护并将漏洞数据泄露到内部端点。
CVSS Information
N/A
Vulnerability Type
N/A