CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:L/Au:N/C:P/I:P/A:N
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
AI Score
Confidence
High
EPSS
Percentile
79.7%
The remote host is missing an update for the Debian
# SPDX-FileCopyrightText: 2021 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("1.3.6.1.4.1.25623.1.0.892686");
script_cve_id("CVE-2018-20060", "CVE-2019-11236", "CVE-2019-11324", "CVE-2020-26137");
script_tag(name:"creation_date", value:"2021-06-16 03:00:13 +0000 (Wed, 16 Jun 2021)");
script_version("2024-02-02T05:06:07+0000");
script_tag(name:"last_modification", value:"2024-02-02 05:06:07 +0000 (Fri, 02 Feb 2024)");
script_tag(name:"cvss_base", value:"6.4");
script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:P/I:P/A:N");
script_tag(name:"severity_vector", value:"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
script_tag(name:"severity_origin", value:"NVD");
script_tag(name:"severity_date", value:"2020-10-13 17:37:08 +0000 (Tue, 13 Oct 2020)");
script_name("Debian: Security Advisory (DLA-2686-1)");
script_category(ACT_GATHER_INFO);
script_copyright("Copyright (C) 2021 Greenbone AG");
script_family("Debian Local Security Checks");
script_dependencies("gather-package-list.nasl");
script_mandatory_keys("ssh/login/debian_linux", "ssh/login/packages", re:"ssh/login/release=DEB9");
script_xref(name:"Advisory-ID", value:"DLA-2686-1");
script_xref(name:"URL", value:"https://www.debian.org/lts/security/2021/DLA-2686-1");
script_xref(name:"URL", value:"https://security-tracker.debian.org/tracker/python-urllib3");
script_xref(name:"URL", value:"https://wiki.debian.org/LTS");
script_tag(name:"summary", value:"The remote host is missing an update for the Debian 'python-urllib3' package(s) announced via the DLA-2686-1 advisory.");
script_tag(name:"vuldetect", value:"Checks if a vulnerable package version is present on the target host.");
script_tag(name:"insight", value:"Several vulnerabilities were discovered in python-urllib3, a HTTP client for Python.
CVE-2018-20060
Urllib3 does not remove the Authorization HTTP header when following a cross-origin redirect (i.e., a redirect that differs in host, port, or scheme). This can allow for credentials in the Authorization header to be exposed to unintended hosts or transmitted in cleartext.
CVE-2019-11236
CRLF injection is possible if the attacker controls the request parameter.
CVE-2019-11324
Urllib3 mishandles certain cases where the desired set of CA certificates is different from the OS store of CA certificates, which results in SSL connections succeeding in situations where a verification failure is the correct outcome. This is related to use of the ssl_context, ca_certs, or ca_certs_dir argument.
CVE-2020-26137
Urllib3 allows CRLF injection if the attacker controls the HTTP request method, as demonstrated by inserting CR and LF control characters in the first argument of putrequest().
For Debian 9 stretch, these problems have been fixed in version 1.19.1-1+deb9u1.
We recommend that you upgrade your python-urllib3 packages.
For the detailed security status of python-urllib3 please refer to its security tracker page at: [link moved to references]
Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: [link moved to references]");
script_tag(name:"affected", value:"'python-urllib3' package(s) on Debian 9.");
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 == "DEB9") {
if(!isnull(res = isdpkgvuln(pkg:"python-urllib3", ver:"1.19.1-1+deb9u1", rls:"DEB9"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"python3-urllib3", ver:"1.19.1-1+deb9u1", rls:"DEB9"))) {
report += res;
}
if(report != "") {
security_message(data:report);
} else if(__pkg_match) {
exit(99);
}
exit(0);
}
exit(0);
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:L/Au:N/C:P/I:P/A:N
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
AI Score
Confidence
High
EPSS
Percentile
79.7%