The 'libcommons-net-java' package on Ubuntu is affected by CVE-2021-37533, allowing a remote attacker to redirect the client to another server and leak information about the private network
Source | Link |
---|---|
ubuntu | www.ubuntu.com/security/notices/USN-6037-1 |
# 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("1.3.6.1.4.1.25623.1.1.12.2023.6037.1");
script_cve_id("CVE-2021-37533");
script_tag(name:"creation_date", value:"2023-04-26 04:09:34 +0000 (Wed, 26 Apr 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:"7.8");
script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:C/I:N/A:N");
script_tag(name:"severity_vector", value:"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N");
script_tag(name:"severity_origin", value:"NVD");
script_tag(name:"severity_date", value:"2022-12-06 13:01:07 +0000 (Tue, 06 Dec 2022)");
script_name("Ubuntu: Security Advisory (USN-6037-1)");
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=UBUNTU(16\.04\ LTS|18\.04\ LTS|20\.04\ LTS|22\.04\ LTS|22\.10)");
script_xref(name:"Advisory-ID", value:"USN-6037-1");
script_xref(name:"URL", value:"https://ubuntu.com/security/notices/USN-6037-1");
script_tag(name:"summary", value:"The remote host is missing an update for the 'libcommons-net-java' package(s) announced via the USN-6037-1 advisory.");
script_tag(name:"vuldetect", value:"Checks if a vulnerable package version is present on the target host.");
script_tag(name:"insight", value:"ZeddYu Lu discovered that the FTP client from Apache Commons Net trusted
the host from PASV responses by default. A remote attacker with a
malicious FTP server could redirect the client to another server, which
could possibly result in leaked information about services running on the
private network of the client.");
script_tag(name:"affected", value:"'libcommons-net-java' package(s) on Ubuntu 16.04, Ubuntu 18.04, Ubuntu 20.04, Ubuntu 22.04, Ubuntu 22.10.");
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 == "UBUNTU16.04 LTS") {
if(!isnull(res = isdpkgvuln(pkg:"libcommons-net-java", ver:"3.4-2ubuntu2+esm1", rls:"UBUNTU16.04 LTS"))) {
report += res;
}
if(report != "") {
security_message(data:report);
} else if(__pkg_match) {
exit(99);
}
exit(0);
}
if(release == "UBUNTU18.04 LTS") {
if(!isnull(res = isdpkgvuln(pkg:"libcommons-net-java", ver:"3.6-1+deb11u1build0.18.04.1", rls:"UBUNTU18.04 LTS"))) {
report += res;
}
if(report != "") {
security_message(data:report);
} else if(__pkg_match) {
exit(99);
}
exit(0);
}
if(release == "UBUNTU20.04 LTS") {
if(!isnull(res = isdpkgvuln(pkg:"libcommons-net-java", ver:"3.6-1+deb11u1build0.20.04.1", rls:"UBUNTU20.04 LTS"))) {
report += res;
}
if(report != "") {
security_message(data:report);
} else if(__pkg_match) {
exit(99);
}
exit(0);
}
if(release == "UBUNTU22.04 LTS") {
if(!isnull(res = isdpkgvuln(pkg:"libcommons-net-java", ver:"3.6-1+deb11u1build0.22.04.1", rls:"UBUNTU22.04 LTS"))) {
report += res;
}
if(report != "") {
security_message(data:report);
} else if(__pkg_match) {
exit(99);
}
exit(0);
}
if(release == "UBUNTU22.10") {
if(!isnull(res = isdpkgvuln(pkg:"libcommons-net-java", ver:"3.6-1+deb11u1build0.22.10.1", rls:"UBUNTU22.10"))) {
report += res;
}
if(report != "") {
security_message(data:report);
} else if(__pkg_match) {
exit(99);
}
exit(0);
}
exit(0);
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