7.2 High
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
0.0004 Low
EPSS
Percentile
0.4%
A recent (fall 2000) security fix to cron introduced an error in giving up privileges before invoking the editor. This was discovered by Sebastian Krahmer from SuSE. A malicious user could easily gain root access.
#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory DSA-054. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(14891);
script_version("1.16");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/04");
script_cve_id("CVE-2001-0559");
script_xref(name:"DSA", value:"054");
script_name(english:"Debian DSA-054-1 : cron - local root exploit");
script_summary(english:"Checks dpkg output for the updated package");
script_set_attribute(
attribute:"synopsis",
value:"The remote Debian host is missing a security-related update."
);
script_set_attribute(
attribute:"description",
value:
"A recent (fall 2000) security fix to cron introduced an error in
giving up privileges before invoking the editor. This was discovered
by Sebastian Krahmer from SuSE. A malicious user could easily gain
root access."
);
script_set_attribute(
attribute:"see_also",
value:"http://www.debian.org/security/2001/dsa-054"
);
script_set_attribute(
attribute:"solution",
value:
"This has been fixed in version 3.0pl1-57.3 (or 3.0pl1-67 for
unstable). No exploits are known to exist, but we recommend that you
upgrade your cron packages immediately."
);
script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:cron");
script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:2.2");
script_set_attribute(attribute:"patch_publication_date", value:"2001/05/07");
script_set_attribute(attribute:"plugin_publication_date", value:"2004/09/29");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2004-2021 Tenable Network Security, Inc.");
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:"2.2", prefix:"cron", reference:"3.0pl1-57.3")) 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 | cron | p-cpe:/a:debian:debian_linux:cron |
debian | debian_linux | 2.2 | cpe:/o:debian:debian_linux:2.2 |