{
  "version": "https://jsonfeed.org/version/1.1",
  "title": "Citrix Bleed: NetScaler session token leak (CVE-2023-4966) · updates",
  "home_page_url": "https://pwn.watch/i/citrix-bleed-netscaler-cve-2023-4966",
  "feed_url": "https://pwn.watch/i/citrix-bleed-netscaler-cve-2023-4966/feed.json",
  "description": "A memory leak in NetScaler ADC and Gateway let attackers read session tokens and hijack logged-in sessions, bypassing passwords and MFA. It was exploited as a zero-day from late August 2023, then widely by LockBit affiliates. Victims included Xfinity (35.9M users).",
  "language": "en",
  "_pwn": {
    "slug": "citrix-bleed-netscaler-cve-2023-4966",
    "severity": "critical",
    "status": "closed",
    "patchStatus": "patched",
    "rss": "https://pwn.watch/i/citrix-bleed-netscaler-cve-2023-4966/feed.xml",
    "llms": "https://pwn.watch/i/citrix-bleed-netscaler-cve-2023-4966/llms.txt",
    "json": "https://pwn.watch/i/citrix-bleed-netscaler-cve-2023-4966.json"
  },
  "items": [
    {
      "id": "https://pwn.watch/i/citrix-bleed-netscaler-cve-2023-4966#2023-12-18-4f6b5f47",
      "url": "https://pwn.watch/i/citrix-bleed-netscaler-cve-2023-4966#2023-12-18-4f6b5f47",
      "title": "Citrix Bleed: NetScaler session token leak (CVE-2023-4966): Xfinity discloses that Citrix Bleed exploitation on Oct 16–19 exposed data on 35.9M customers",
      "content_text": "Citrix Bleed: NetScaler session token leak (CVE-2023-4966): Xfinity discloses that Citrix Bleed exploitation on Oct 16–19 exposed data on 35.9M customers\n\nSource: https://www.theverge.com/2023/12/18/24007082/xfinity-data-breach-hack-notice-citrix",
      "date_published": "2023-12-18T00:00:00.000Z",
      "external_url": "https://www.theverge.com/2023/12/18/24007082/xfinity-data-breach-hack-notice-citrix",
      "tags": [
        "critical"
      ]
    },
    {
      "id": "https://pwn.watch/i/citrix-bleed-netscaler-cve-2023-4966#2023-11-21-c3bd0a0c",
      "url": "https://pwn.watch/i/citrix-bleed-netscaler-cve-2023-4966#2023-11-21-c3bd0a0c",
      "title": "Citrix Bleed: NetScaler session token leak (CVE-2023-4966): CISA, FBI, MS-ISAC and ACSC warn that LockBit 3.0 affiliates are exploiting Citrix Bleed (AA23-325A)",
      "content_text": "Citrix Bleed: NetScaler session token leak (CVE-2023-4966): CISA, FBI, MS-ISAC and ACSC warn that LockBit 3.0 affiliates are exploiting Citrix Bleed (AA23-325A)\n\nSource: https://www.cisa.gov/news-events/cybersecurity-advisories/aa23-325a",
      "date_published": "2023-11-21T00:00:00.000Z",
      "external_url": "https://www.cisa.gov/news-events/cybersecurity-advisories/aa23-325a",
      "tags": [
        "critical"
      ]
    },
    {
      "id": "https://pwn.watch/i/citrix-bleed-netscaler-cve-2023-4966#2023-10-23-06b0c391",
      "url": "https://pwn.watch/i/citrix-bleed-netscaler-cve-2023-4966#2023-10-23-06b0c391",
      "title": "Citrix Bleed: NetScaler session token leak (CVE-2023-4966): Citrix issues additional mitigation guidance",
      "content_text": "Citrix Bleed: NetScaler session token leak (CVE-2023-4966): Citrix issues additional mitigation guidance\n\nSource: https://assets.xfinity.com/assets/dotcom/learn/Notice%20To%20Customers%20of%20Data%20Security%20Incident.pdf",
      "date_published": "2023-10-23T00:00:00.000Z",
      "external_url": "https://assets.xfinity.com/assets/dotcom/learn/Notice%20To%20Customers%20of%20Data%20Security%20Incident.pdf",
      "tags": [
        "critical"
      ]
    },
    {
      "id": "https://pwn.watch/i/citrix-bleed-netscaler-cve-2023-4966#2023-10-18-0b649663",
      "url": "https://pwn.watch/i/citrix-bleed-netscaler-cve-2023-4966#2023-10-18-0b649663",
      "title": "Citrix Bleed: NetScaler session token leak (CVE-2023-4966): CISA adds CVE-2023-4966 to the KEV catalog",
      "content_text": "Citrix Bleed: NetScaler session token leak (CVE-2023-4966): CISA adds CVE-2023-4966 to the KEV catalog",
      "date_published": "2023-10-18T00:00:00.000Z",
      "tags": [
        "critical"
      ]
    },
    {
      "id": "https://pwn.watch/i/citrix-bleed-netscaler-cve-2023-4966#2023-10-17-98e819bc",
      "url": "https://pwn.watch/i/citrix-bleed-netscaler-cve-2023-4966#2023-10-17-98e819bc",
      "title": "Citrix Bleed: NetScaler session token leak (CVE-2023-4966): Mandiant reports zero-day exploitation since late August 2023 and session hijacking that survives patching",
      "content_text": "Citrix Bleed: NetScaler session token leak (CVE-2023-4966): Mandiant reports zero-day exploitation since late August 2023 and session hijacking that survives patching\n\nSource: https://cloud.google.com/blog/topics/threat-intelligence/session-hijacking-citrix-cve-2023-4966",
      "date_published": "2023-10-17T00:00:00.000Z",
      "external_url": "https://cloud.google.com/blog/topics/threat-intelligence/session-hijacking-citrix-cve-2023-4966",
      "tags": [
        "critical"
      ]
    },
    {
      "id": "https://pwn.watch/i/citrix-bleed-netscaler-cve-2023-4966#2023-10-10-4865aa55",
      "url": "https://pwn.watch/i/citrix-bleed-netscaler-cve-2023-4966#2023-10-10-4865aa55",
      "title": "Citrix Bleed: NetScaler session token leak (CVE-2023-4966): Citrix publishes bulletin CTX579459 and fixed builds",
      "content_text": "Citrix Bleed: NetScaler session token leak (CVE-2023-4966): Citrix publishes bulletin CTX579459 and fixed builds\n\nSource: https://support.citrix.com/external/article/CTX579459/netscaler-adc-and-netscaler-gateway-secu.html",
      "date_published": "2023-10-10T00:00:00.000Z",
      "external_url": "https://support.citrix.com/external/article/CTX579459/netscaler-adc-and-netscaler-gateway-secu.html",
      "tags": [
        "critical"
      ]
    }
  ]
}