Updated unzip packages resolving a vulnerability allowing arbitrary files to be overwritten are now available.
[Updated 15 August 2003] Ben Laurie found that the original patch to fix this issue missed a case where the path component included a quoted slash. These updated packages contain a new patch that corrects this issue.
The unzip utility is used for manipulating archives, which are multiple files stored inside of a single file.
A vulnerabilitiy in unzip version 5.50 and earlier allows attackers to overwrite arbitrary files during archive extraction by placing invalid (non-printable) characters between two ‘.’ characters. These non-printable characters are filtered, resulting in a ‘…’ sequence.
The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2003-0282 to this issue.
This erratum includes a patch ensuring that non-printable characters do not make it possible for a malicious .zip file to write to parent directories unless the ‘-:’ command line parameter is specified.
Users of unzip are advised to upgrade to these updated packages, which are not vulnerable to this issue.
#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Red Hat Security Advisory RHSA-2003:200. The text
# itself is copyright (C) Red Hat, Inc.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(12403);
script_version("1.28");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/14");
script_cve_id("CVE-2003-0282");
script_xref(name:"RHSA", value:"2003:200");
script_name(english:"RHEL 2.1 : unzip (RHSA-2003:200)");
script_summary(english:"Checks the rpm output for the updated package");
script_set_attribute(
attribute:"synopsis",
value:"The remote Red Hat host is missing a security update."
);
script_set_attribute(
attribute:"description",
value:
"Updated unzip packages resolving a vulnerability allowing arbitrary
files to be overwritten are now available.
[Updated 15 August 2003] Ben Laurie found that the original patch to
fix this issue missed a case where the path component included a
quoted slash. These updated packages contain a new patch that corrects
this issue.
The unzip utility is used for manipulating archives, which are
multiple files stored inside of a single file.
A vulnerabilitiy in unzip version 5.50 and earlier allows attackers to
overwrite arbitrary files during archive extraction by placing invalid
(non-printable) characters between two '.' characters. These
non-printable characters are filtered, resulting in a '..' sequence.
The Common Vulnerabilities and Exposures project (cve.mitre.org) has
assigned the name CVE-2003-0282 to this issue.
This erratum includes a patch ensuring that non-printable characters
do not make it possible for a malicious .zip file to write to parent
directories unless the '-:' command line parameter is specified.
Users of unzip are advised to upgrade to these updated packages, which
are not vulnerable to this issue."
);
script_set_attribute(
attribute:"see_also",
value:"https://access.redhat.com/security/cve/cve-2003-0282"
);
# http://marc.theaimsgroup.com/?l=bugtraq&m=105259038503175
script_set_attribute(
attribute:"see_also",
value:"https://marc.info/?l=bugtraq&m=105259038503175"
);
script_set_attribute(
attribute:"see_also",
value:"https://access.redhat.com/errata/RHSA-2003:200"
);
script_set_attribute(attribute:"solution", value:"Update the affected unzip package.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:H/Au:N/C:N/I:P/A:N");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:unzip");
script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:2.1");
script_set_attribute(attribute:"vuln_publication_date", value:"2003/06/16");
script_set_attribute(attribute:"patch_publication_date", value:"2003/08/15");
script_set_attribute(attribute:"plugin_publication_date", value:"2004/07/06");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2004-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_family(english:"Red Hat Local Security Checks");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/rpm-list", "Host/cpu");
exit(0);
}
include("audit.inc");
include("global_settings.inc");
include("misc_func.inc");
include("rpm.inc");
if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/RedHat/release");
if (isnull(release) || "Red Hat" >!< release) audit(AUDIT_OS_NOT, "Red Hat");
os_ver = pregmatch(pattern: "Red Hat Enterprise Linux.*release ([0-9]+(\.[0-9]+)?)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Red Hat");
os_ver = os_ver[1];
if (! preg(pattern:"^2\.1([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Red Hat 2.1", "Red Hat " + os_ver);
if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$" && "s390" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Red Hat", cpu);
if (cpu !~ "^i[3-6]86$") audit(AUDIT_ARCH_NOT, "i386", cpu);
yum_updateinfo = get_kb_item("Host/RedHat/yum-updateinfo");
if (!empty_or_null(yum_updateinfo))
{
rhsa = "RHSA-2003:200";
yum_report = redhat_generate_yum_updateinfo_report(rhsa:rhsa);
if (!empty_or_null(yum_report))
{
security_report_v4(
port : 0,
severity : SECURITY_NOTE,
extra : yum_report
);
exit(0);
}
else
{
audit_message = "affected by Red Hat security advisory " + rhsa;
audit(AUDIT_OS_NOT, audit_message);
}
}
else
{
flag = 0;
if (rpm_check(release:"RHEL2.1", cpu:"i386", reference:"unzip-5.50-30")) flag++;
if (flag)
{
security_report_v4(
port : 0,
severity : SECURITY_NOTE,
extra : rpm_report_get() + redhat_report_package_caveat()
);
exit(0);
}
else
{
tested = pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, "unzip");
}
}
Vendor | Product | Version | CPE |
---|---|---|---|
redhat | enterprise_linux | unzip | p-cpe:/a:redhat:enterprise_linux:unzip |
redhat | enterprise_linux | 2.1 | cpe:/o:redhat:enterprise_linux:2.1 |