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openvasCopyright (C) 2023 Greenbone AGOPENVAS:136141256231112202362781
HistoryAug 09, 2023 - 12:00 a.m.

Ubuntu: Security Advisory (USN-6278-1)

2023-08-0900:00:00
Copyright (C) 2023 Greenbone AG
plugins.openvas.org
3
dotnet6
dotnet7
remote code execution
denial of service
ubuntu 23.04
update package
vulnerability

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

7.9 High

AI Score

Confidence

High

0.008 Low

EPSS

Percentile

81.0%

The remote host is missing an update for the

# SPDX-FileCopyrightText: 2023 Greenbone AG
# Some text descriptions might be excerpted from (a) referenced
# source(s), and are Copyright (C) by the respective right holder(s).
#
# SPDX-License-Identifier: GPL-2.0-only

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.1.12.2023.6278.1");
  script_cve_id("CVE-2023-35390", "CVE-2023-38178", "CVE-2023-38180");
  script_tag(name:"creation_date", value:"2023-08-09 04:08:45 +0000 (Wed, 09 Aug 2023)");
  script_version("2024-02-02T05:06:10+0000");
  script_tag(name:"last_modification", value:"2024-02-02 05:06:10 +0000 (Fri, 02 Feb 2024)");
  script_tag(name:"cvss_base", value:"7.2");
  script_tag(name:"cvss_base_vector", value:"AV:L/AC:L/Au:N/C:C/I:C/A:C");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2023-08-08 18:15:13 +0000 (Tue, 08 Aug 2023)");

  script_name("Ubuntu: Security Advisory (USN-6278-1)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2023 Greenbone AG");
  script_family("Ubuntu Local Security Checks");
  script_dependencies("gather-package-list.nasl");
  script_mandatory_keys("ssh/login/ubuntu_linux", "ssh/login/packages", re:"ssh/login/release=UBUNTU23\.04");

  script_xref(name:"Advisory-ID", value:"USN-6278-1");
  script_xref(name:"URL", value:"https://ubuntu.com/security/notices/USN-6278-1");

  script_tag(name:"summary", value:"The remote host is missing an update for the 'dotnet6, dotnet7' package(s) announced via the USN-6278-1 advisory.");

  script_tag(name:"vuldetect", value:"Checks if a vulnerable package version is present on the target host.");

  script_tag(name:"insight", value:"It was discovered that .NET did not properly handle the execution
of certain commands. An attacker could possibly use this issue to
achieve remote code execution. (CVE-2023-35390)

Benoit Foucher discovered that .NET did not properly implement the
QUIC stream limit in HTTP/3. An attacker could possibly use this
issue to cause a denial of service. (CVE-2023-38178)

It was discovered that .NET did not properly handle the disconnection
of potentially malicious clients interfacing with a Kestrel server. An
attacker could possibly use this issue to cause a denial of service.
(CVE-2023-38180)");

  script_tag(name:"affected", value:"'dotnet6, dotnet7' package(s) on Ubuntu 23.04.");

  script_tag(name:"solution", value:"Please install the updated package(s).");

  script_tag(name:"solution_type", value:"VendorFix");
  script_tag(name:"qod_type", value:"package");

  exit(0);
}

include("revisions-lib.inc");
include("pkg-lib-deb.inc");

release = dpkg_get_ssh_release();
if(!release)
  exit(0);

res = "";
report = "";

if(release == "UBUNTU23.04") {

  if(!isnull(res = isdpkgvuln(pkg:"aspnetcore-runtime-6.0", ver:"6.0.121-0ubuntu1~23.04.1", rls:"UBUNTU23.04"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"aspnetcore-runtime-7.0", ver:"7.0.110-0ubuntu1~23.04.1", rls:"UBUNTU23.04"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"dotnet-host", ver:"6.0.121-0ubuntu1~23.04.1", rls:"UBUNTU23.04"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"dotnet-host-7.0", ver:"7.0.110-0ubuntu1~23.04.1", rls:"UBUNTU23.04"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"dotnet-hostfxr-6.0", ver:"6.0.121-0ubuntu1~23.04.1", rls:"UBUNTU23.04"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"dotnet-hostfxr-7.0", ver:"7.0.110-0ubuntu1~23.04.1", rls:"UBUNTU23.04"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"dotnet-runtime-6.0", ver:"6.0.121-0ubuntu1~23.04.1", rls:"UBUNTU23.04"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"dotnet-runtime-7.0", ver:"7.0.110-0ubuntu1~23.04.1", rls:"UBUNTU23.04"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"dotnet-sdk-6.0", ver:"6.0.121-0ubuntu1~23.04.1", rls:"UBUNTU23.04"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"dotnet-sdk-7.0", ver:"7.0.110-0ubuntu1~23.04.1", rls:"UBUNTU23.04"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"dotnet6", ver:"6.0.121-0ubuntu1~23.04.1", rls:"UBUNTU23.04"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"dotnet7", ver:"7.0.110-0ubuntu1~23.04.1", rls:"UBUNTU23.04"))) {
    report += res;
  }

  if(report != "") {
    security_message(data:report);
  } else if(__pkg_match) {
    exit(99);
  }
  exit(0);
}

exit(0);

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

7.9 High

AI Score

Confidence

High

0.008 Low

EPSS

Percentile

81.0%