Zimbra Collaboration Server < 8.8.15 Patch 7 Server-Side Request Forgery Vulnerability

#%NASL_MIN_LEVEL 80900
#
# (C) Tenable, Inc.
#

include('compat.inc');

if (description)
{
  script_id(322411);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/06/25");

  script_cve_id("CVE-2020-7796");
  script_xref(name:"CISA-KNOWN-EXPLOITED", value:"2026/03/10");

  script_name(english:"Zimbra Collaboration Server < 8.8.15 Patch 7 Server-Side Request Forgery Vulnerability");

  script_set_attribute(attribute:"synopsis", value:
"The remote web server contains a web application that is affected by a server-side request forgery vulnerability.");
  script_set_attribute(attribute:"description", value:
"According to its self-reported version number, Zimbra Collaboration Server is affected by a server-side request forgery
vulnerability:

  - Zimbra Collaboration Suite (ZCS) before 8.8.15 Patch 7 allows SSRF when WebEx zimlet is installed and zimlet
    JSP is enabled. (CVE-2020-7796)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
  script_set_attribute(attribute:"see_also", value:"https://wiki.zimbra.com/wiki/Zimbra_Releases/8.8.15/P7");
  script_set_attribute(attribute:"solution", value:
"Upgrade to version 8.8.15 Patch 7 or later.");
  script_set_attribute(attribute:"agent", value:"unix");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:F/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:F/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2020-7796");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2020/02/12");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/02/12");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/06/24");

  script_set_attribute(attribute:"potential_vulnerability", value:"true");
  script_set_attribute(attribute:"plugin_type", value:"combined");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:zimbra:collaboration_suite");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"CGI abuses");

  script_copyright(english:"This script is Copyright (C) 2026 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("zimbra_web_detect.nbin", "zimbra_nix_installed.nbin");
  script_require_keys("installed_sw/zimbra_zcs", "Settings/ParanoidReport");

  exit(0);
}

include('vcf.inc');
include('vcf_extras.inc');

# Requires WebEx zimlet installed and JSP enabled
if (report_paranoia < 2) audit(AUDIT_PARANOID);

var app_info = vcf::zimbra::combined_get_app_info();

var constraints = [
  {'max_version':'8.8.15', 'Patch':'7', 'fixed_display':'8.8.15 Patch 7'}
];

vcf::zimbra::check_version_and_report(
  app_info:app_info,
  constraints:constraints,
  severity:SECURITY_WARNING
);