CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:C/I:C/A:C
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS
Percentile
69.9%
A privilege escalation was discovered in Sympa, a modern mailing list manager. It is fixed when Sympa is used in conjunction with common MTAs (such as Exim or Postfix) by disabling a setuid executable, although no fix is currently available for all environments (such as sendmail). Additionally, an open-redirect vulnerability was discovered and fixed.
CVE-2020-26880
Sympa allows a local privilege escalation from the sympa user account to full root access by modifying the sympa.conf configuration file (which is owned by sympa) and parsing it through the setuid sympa_newaliases-wrapper executable.
CVE-2018-1000671
Sympa contains a CWE-601: URL Redirection to Untrusted Site (‘Open Redirect’) vulnerability in The ‘referer’ parameter of the wwsympa.fcgi login action. that can result in Open redirection and reflected XSS via data URIs.
For Debian 9 stretch, these problems have been fixed in version 6.2.16~dfsg-3+deb9u4.
We recommend that you upgrade your sympa packages.
For the detailed security status of sympa please refer to its security tracker page at: https://security-tracker.debian.org/tracker/sympa
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-2441-1. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#
include("compat.inc");
if (description)
{
script_id(142670);
script_version("1.3");
script_set_attribute(attribute:"plugin_modification_date", value:"2020/11/20");
script_cve_id("CVE-2018-1000671", "CVE-2020-26880");
script_name(english:"Debian DLA-2441-1 : sympa security update");
script_summary(english:"Checks dpkg output for the updated package.");
script_set_attribute(
attribute:"synopsis",
value:"The remote Debian host is missing a security update."
);
script_set_attribute(
attribute:"description",
value:
"A privilege escalation was discovered in Sympa, a modern mailing list
manager. It is fixed when Sympa is used in conjunction with common
MTAs (such as Exim or Postfix) by disabling a setuid executable,
although no fix is currently available for all environments (such as
sendmail). Additionally, an open-redirect vulnerability was discovered
and fixed.
CVE-2020-26880
Sympa allows a local privilege escalation from the sympa user account
to full root access by modifying the sympa.conf configuration file
(which is owned by sympa) and parsing it through the setuid
sympa_newaliases-wrapper executable.
CVE-2018-1000671
Sympa contains a CWE-601: URL Redirection to Untrusted Site ('Open
Redirect') vulnerability in The 'referer' parameter of the
wwsympa.fcgi login action. that can result in Open redirection and
reflected XSS via data URIs.
For Debian 9 stretch, these problems have been fixed in version
6.2.16~dfsg-3+deb9u4.
We recommend that you upgrade your sympa packages.
For the detailed security status of sympa please refer to its security
tracker page at: https://security-tracker.debian.org/tracker/sympa
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/2020/11/msg00015.html"
);
script_set_attribute(
attribute:"see_also",
value:"https://packages.debian.org/source/stretch/sympa"
);
script_set_attribute(
attribute:"see_also",
value:"https://security-tracker.debian.org/tracker/source-package/sympa"
);
script_set_attribute(
attribute:"solution",
value:"Upgrade the affected sympa package."
);
script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C");
script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H");
script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2020-26880");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:sympa");
script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:9.0");
script_set_attribute(attribute:"vuln_publication_date", value:"2018/09/06");
script_set_attribute(attribute:"patch_publication_date", value:"2020/11/09");
script_set_attribute(attribute:"plugin_publication_date", value:"2020/11/10");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2020 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:"sympa", reference:"6.2.16~dfsg-3+deb9u4")) flag++;
if (flag)
{
if (report_verbosity > 0) security_hole(port:0, extra:deb_report_get());
else security_hole(0);
exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");
Vendor | Product | Version | CPE |
---|---|---|---|
debian | debian_linux | sympa | p-cpe:/a:debian:debian_linux:sympa |
debian | debian_linux | 9.0 | cpe:/o:debian:debian_linux:9.0 |
CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:C/I:C/A:C
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS
Percentile
69.9%