6.1 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
0.001 Low
EPSS
Percentile
32.6%
It was discovered that there was a cross-site scripting (XSS) vulnerability in python-bleach, a whitelist-based HTML sanitisation library.
For Debian 9 ‘Stretch’, this problem has been fixed in version 2.0-1+deb9u1.
We recommend that you upgrade your python-bleach packages.
For the detailed security status of python-bleach please refer to its security tracker page at:
https://security-tracker.debian.org/tracker/python-bleach
NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory DLA-2620-1. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#
include("compat.inc");
if (description)
{
script_id(148363);
script_version("1.4");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/01/12");
script_cve_id("CVE-2021-23980");
script_name(english:"Debian DLA-2620-1 : python-bleach security update");
script_summary(english:"Checks dpkg output for the updated packages.");
script_set_attribute(
attribute:"synopsis",
value:"The remote Debian host is missing a security update."
);
script_set_attribute(
attribute:"description",
value:
"It was discovered that there was a cross-site scripting (XSS)
vulnerability in python-bleach, a whitelist-based HTML sanitisation
library.
For Debian 9 'Stretch', this problem has been fixed in version
2.0-1+deb9u1.
We recommend that you upgrade your python-bleach packages.
For the detailed security status of python-bleach please refer to its
security tracker page at:
https://security-tracker.debian.org/tracker/python-bleach
NOTE: Tenable Network Security has extracted the preceding description
block directly from the DLA security advisory. Tenable has attempted
to automatically clean and format it as much as possible without
introducing additional issues."
);
script_set_attribute(
attribute:"see_also",
value:"https://lists.debian.org/debian-lts-announce/2021/04/msg00006.html"
);
script_set_attribute(
attribute:"see_also",
value:"https://packages.debian.org/source/stretch/python-bleach"
);
# https://security-tracker.debian.org/tracker/source-package/python-bleach
script_set_attribute(
attribute:"see_also",
value:"http://www.nessus.org/u?2438169a"
);
script_set_attribute(attribute:"solution", value:"Upgrade the affected packages.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:N");
script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N");
script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2021-23980");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:python-bleach");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:python-bleach-doc");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:python3-bleach");
script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:9.0");
script_set_attribute(attribute:"vuln_publication_date", value:"2023/02/16");
script_set_attribute(attribute:"patch_publication_date", value:"2021/04/06");
script_set_attribute(attribute:"plugin_publication_date", value:"2021/04/07");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2021-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_family(english:"Debian Local Security Checks");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/Debian/release", "Host/Debian/dpkg-l");
exit(0);
}
include("audit.inc");
include("debian_package.inc");
if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Debian/release")) audit(AUDIT_OS_NOT, "Debian");
if (!get_kb_item("Host/Debian/dpkg-l")) audit(AUDIT_PACKAGE_LIST_MISSING);
flag = 0;
if (deb_check(release:"9.0", prefix:"python-bleach", reference:"2.0-1+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"python-bleach-doc", reference:"2.0-1+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"python3-bleach", reference:"2.0-1+deb9u1")) flag++;
if (flag)
{
if (report_verbosity > 0) security_warning(port:0, extra:deb_report_get());
else security_warning(0);
exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");
Vendor | Product | Version | CPE |
---|---|---|---|
debian | debian_linux | python-bleach | p-cpe:/a:debian:debian_linux:python-bleach |
debian | debian_linux | python-bleach-doc | p-cpe:/a:debian:debian_linux:python-bleach-doc |
debian | debian_linux | python3-bleach | p-cpe:/a:debian:debian_linux:python3-bleach |
debian | debian_linux | 9.0 | cpe:/o:debian:debian_linux:9.0 |