It was discovered that the STARTTLS implementation of the Kolab Cyrus IMAP server does not properly restrict I/O buffering, which allows man-in-the-middle attackers to insert commands into encrypted IMAP, LMTP, NNTP and POP3 sessions by sending a cleartext command that is processed after TLS is in place.
#%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-2258. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(55065);
script_version("1.9");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/04");
script_cve_id("CVE-2011-1926");
script_xref(name:"DSA", value:"2258");
script_name(english:"Debian DSA-2258-1 : kolab-cyrus-imapd - implementation error");
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:
"It was discovered that the STARTTLS implementation of the Kolab Cyrus
IMAP server does not properly restrict I/O buffering, which allows
man-in-the-middle attackers to insert commands into encrypted IMAP,
LMTP, NNTP and POP3 sessions by sending a cleartext command that is
processed after TLS is in place."
);
script_set_attribute(
attribute:"see_also",
value:"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=629350"
);
script_set_attribute(
attribute:"see_also",
value:"https://packages.debian.org/source/squeeze/kolab-cyrus-imapd"
);
script_set_attribute(
attribute:"see_also",
value:"https://www.debian.org/security/2011/dsa-2258"
);
script_set_attribute(
attribute:"solution",
value:
"Upgrade the kolab-cyrus-imapd packages.
For the oldstable distribution (lenny), this problem has been fixed in
version 2.2.13-5+lenny3.
For the stable distribution (squeeze), this problem has been fixed in
version 2.2.13-9.1."
);
script_set_cvss_base_vector("CVSS2#AV:N/AC:H/Au:N/C:P/I:P/A:P");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:kolab-cyrus-imapd");
script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:5.0");
script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:6.0");
script_set_attribute(attribute:"patch_publication_date", value:"2011/06/11");
script_set_attribute(attribute:"plugin_publication_date", value:"2011/06/13");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2011-2021 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:"5.0", prefix:"kolab-cyrus-imapd", reference:"2.2.13-5+lenny3")) flag++;
if (deb_check(release:"6.0", prefix:"kolab-cyrus-admin", reference:"2.2.13-9.1")) flag++;
if (deb_check(release:"6.0", prefix:"kolab-cyrus-clients", reference:"2.2.13-9.1")) flag++;
if (deb_check(release:"6.0", prefix:"kolab-cyrus-common", reference:"2.2.13-9.1")) flag++;
if (deb_check(release:"6.0", prefix:"kolab-cyrus-imapd", reference:"2.2.13-9.1")) flag++;
if (deb_check(release:"6.0", prefix:"kolab-cyrus-pop3d", reference:"2.2.13-9.1")) flag++;
if (deb_check(release:"6.0", prefix:"kolab-libcyrus-imap-perl", reference:"2.2.13-9.1")) 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 | kolab-cyrus-imapd | p-cpe:/a:debian:debian_linux:kolab-cyrus-imapd |
debian | debian_linux | 5.0 | cpe:/o:debian:debian_linux:5.0 |
debian | debian_linux | 6.0 | cpe:/o:debian:debian_linux:6.0 |