CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:L/Au:N/C:N/I:P/A:N
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
EPSS
Percentile
56.6%
Two issues were discovered in Django, the Python-based web development framework :
CVE-2021-33203: Potential directory traversal via admindocs
Staff members could use the admindocs TemplateDetailView view to check the existence of arbitrary files.
Additionally, if (and only if) the default admindocs templates have been customized by the developers to also expose the file contents, then not only the existence but also the file contents would have been exposed.
As a mitigation, path sanitation is now applied and only files within the template root directories can be loaded.
This issue has low severity, according to the Django security policy.
Thanks to Rasmus Lerchedahl Petersen and Rasmus Wriedt Larsen from the CodeQL Python team for the report.
CVE-2021-33571: Possible indeterminate SSRF, RFI, and LFI attacks since validators accepted leading zeros in IPv4 addresses
URLValidator, validate_ipv4_address(), and validate_ipv46_address() didn’t prohibit leading zeros in octal literals. If you used such values you could suffer from indeterminate SSRF, RFI, and LFI attacks.
validate_ipv4_address() and validate_ipv46_address() validators were not affected on Python 3.9.5+.
This issue has medium severity, according to the Django security policy.
For Debian 9 ‘Stretch’, this problem has been fixed in version 1:1.10.7-2+deb9u14.
We recommend that you upgrade your python-django packages.
For the detailed security status of python-django please refer to its security tracker page at:
https://security-tracker.debian.org/tracker/python-django
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.
#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory DLA-2676-1. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#
include('deprecated_nasl_level.inc');
include("compat.inc");
if (description)
{
script_id(150303);
script_version("1.3");
script_set_attribute(attribute:"plugin_modification_date", value:"2022/10/14");
script_cve_id("CVE-2021-33203", "CVE-2021-33571");
script_name(english:"Debian DLA-2676-1 : python-django 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:
"Two issues were discovered in Django, the Python-based web development
framework :
- CVE-2021-33203: Potential directory traversal via
admindocs
Staff members could use the admindocs TemplateDetailView
view to check the existence of arbitrary files.
Additionally, if (and only if) the default admindocs
templates have been customized by the developers to also
expose the file contents, then not only the existence
but also the file contents would have been exposed.
As a mitigation, path sanitation is now applied and only
files within the template root directories can be
loaded.
This issue has low severity, according to the Django
security policy.
Thanks to Rasmus Lerchedahl Petersen and Rasmus Wriedt
Larsen from the CodeQL Python team for the report.
- CVE-2021-33571: Possible indeterminate SSRF, RFI, and
LFI attacks since validators accepted leading zeros in
IPv4 addresses
URLValidator, validate_ipv4_address(), and
validate_ipv46_address() didn't prohibit leading zeros
in octal literals. If you used such values you could
suffer from indeterminate SSRF, RFI, and LFI attacks.
validate_ipv4_address() and validate_ipv46_address()
validators were not affected on Python 3.9.5+.
This issue has medium severity, according to the Django
security policy.
For Debian 9 'Stretch', this problem has been fixed in version
1:1.10.7-2+deb9u14.
We recommend that you upgrade your python-django packages.
For the detailed security status of python-django please refer to its
security tracker page at:
https://security-tracker.debian.org/tracker/python-django
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/2021/06/msg00004.html"
);
script_set_attribute(
attribute:"see_also",
value:"https://packages.debian.org/source/stretch/python-django"
);
# https://security-tracker.debian.org/tracker/source-package/python-django
script_set_attribute(
attribute:"see_also",
value:"http://www.nessus.org/u?22eb32f6"
);
script_set_attribute(attribute:"solution", value:"Upgrade the affected packages.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:N");
script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N");
script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2021-33571");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"exploit_available", value:"false");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:python-django");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:python-django-common");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:python-django-doc");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:python3-django");
script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:9.0");
script_set_attribute(attribute:"vuln_publication_date", value:"2021/06/08");
script_set_attribute(attribute:"patch_publication_date", value:"2021/06/05");
script_set_attribute(attribute:"plugin_publication_date", value:"2021/06/07");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2021-2022 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-django", reference:"1:1.10.7-2+deb9u14")) flag++;
if (deb_check(release:"9.0", prefix:"python-django-common", reference:"1:1.10.7-2+deb9u14")) flag++;
if (deb_check(release:"9.0", prefix:"python-django-doc", reference:"1:1.10.7-2+deb9u14")) flag++;
if (deb_check(release:"9.0", prefix:"python3-django", reference:"1:1.10.7-2+deb9u14")) 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");
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:L/Au:N/C:N/I:P/A:N
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
EPSS
Percentile
56.6%