CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:S/C:P/I:P/A:P
AI Score
Confidence
High
EPSS
Percentile
77.1%
The remote host is missing an update for the
# SPDX-FileCopyrightText: 2013 Greenbone AG
# Some text descriptions might be excerpted from (a) referenced
# source(s), and are Copyright (C) by the respective right holder(s).
#
# SPDX-License-Identifier: GPL-2.0-only
if(description)
{
script_xref(name:"URL", value:"http://lists.centos.org/pipermail/centos-announce/2013-March/019318.html");
script_oid("1.3.6.1.4.1.25623.1.0.881675");
script_version("2023-07-10T08:07:43+0000");
script_tag(name:"last_modification", value:"2023-07-10 08:07:43 +0000 (Mon, 10 Jul 2023)");
script_tag(name:"creation_date", value:"2013-03-12 10:02:15 +0530 (Tue, 12 Mar 2013)");
script_cve_id("CVE-2011-2166", "CVE-2011-2167", "CVE-2011-4318");
script_tag(name:"cvss_base", value:"6.5");
script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:S/C:P/I:P/A:P");
script_xref(name:"CESA", value:"2013:0520");
script_name("CentOS Update for dovecot CESA-2013:0520 centos6");
script_tag(name:"summary", value:"The remote host is missing an update for the 'dovecot'
package(s) announced via the referenced advisory.");
script_category(ACT_GATHER_INFO);
script_copyright("Copyright (C) 2013 Greenbone AG");
script_family("CentOS Local Security Checks");
script_dependencies("gather-package-list.nasl");
script_mandatory_keys("ssh/login/centos", "ssh/login/rpms", re:"ssh/login/release=CentOS6");
script_tag(name:"affected", value:"dovecot on CentOS 6");
script_tag(name:"solution", value:"Please install the updated packages.");
script_tag(name:"insight", value:"Dovecot is an IMAP server, written with security primarily in mind, for
Linux and other UNIX-like systems. It also contains a small POP3 server. It
supports mail in either of maildir or mbox formats. The SQL drivers and
authentication plug-ins are provided as sub-packages.
Two flaws were found in the way some settings were enforced by the
script-login functionality of Dovecot. A remote, authenticated user could
use these flaws to bypass intended access restrictions or conduct a
directory traversal attack by leveraging login scripts. (CVE-2011-2166,
CVE-2011-2167)
A flaw was found in the way Dovecot performed remote server identity
verification, when it was configured to proxy IMAP and POP3 connections to
remote hosts using TLS/SSL protocols. A remote attacker could use this flaw
to conduct man-in-the-middle attacks using an X.509 certificate issued by
a trusted Certificate Authority (for a different name). (CVE-2011-4318)
This update also fixes the following bug:
* When a new user first accessed their IMAP inbox, Dovecot was, under some
circumstances, unable to change the group ownership of the inbox directory
in the user's Maildir location to match that of the user's mail spool
(/var/mail/$USER). This correctly generated an 'Internal error occurred'
message. However, with a subsequent attempt to access the inbox, Dovecot
saw that the directory already existed and proceeded with its operation,
leaving the directory with incorrectly set permissions. This update
corrects the underlying permissions setting error. When a new user now
accesses their inbox for the first time, and it is not possible to set
group ownership, Dovecot removes the created directory and generates an
error message instead of keeping the directory with incorrect group
ownership. (BZ#697620)
Users of dovecot are advised to upgrade to these updated packages, which
contain backported patches to correct these issues. After installing the
updated packages, the dovecot service will be restarted automatically.");
script_tag(name:"qod_type", value:"package");
script_tag(name:"solution_type", value:"VendorFix");
exit(0);
}
include("revisions-lib.inc");
include("pkg-lib-rpm.inc");
release = rpm_get_ssh_release();
if(!release)
exit(0);
res = "";
if(release == "CentOS6")
{
if ((res = isrpmvuln(pkg:"dovecot", rpm:"dovecot~2.0.9~5.el6", rls:"CentOS6")) != NULL)
{
security_message(data:res);
exit(0);
}
if ((res = isrpmvuln(pkg:"dovecot-devel", rpm:"dovecot-devel~2.0.9~5.el6", rls:"CentOS6")) != NULL)
{
security_message(data:res);
exit(0);
}
if ((res = isrpmvuln(pkg:"dovecot-mysql", rpm:"dovecot-mysql~2.0.9~5.el6", rls:"CentOS6")) != NULL)
{
security_message(data:res);
exit(0);
}
if ((res = isrpmvuln(pkg:"dovecot-pgsql", rpm:"dovecot-pgsql~2.0.9~5.el6", rls:"CentOS6")) != NULL)
{
security_message(data:res);
exit(0);
}
if ((res = isrpmvuln(pkg:"dovecot-pigeonhole", rpm:"dovecot-pigeonhole~2.0.9~5.el6", rls:"CentOS6")) != NULL)
{
security_message(data:res);
exit(0);
}
if (__pkg_match) exit(99);
exit(0);
}