CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:N/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
LOW
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
AI Score
Confidence
High
EPSS
Percentile
76.3%
The remote host is missing an update for the
# SPDX-FileCopyrightText: 2015 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_oid("1.3.6.1.4.1.25623.1.0.871433");
script_version("2024-03-21T05:06:54+0000");
script_cve_id("CVE-2015-3238");
script_tag(name:"cvss_base", value:"5.8");
script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:P/I:N/A:P");
script_tag(name:"last_modification", value:"2024-03-21 05:06:54 +0000 (Thu, 21 Mar 2024)");
script_tag(name:"severity_vector", value:"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L");
script_tag(name:"severity_origin", value:"NVD");
script_tag(name:"severity_date", value:"2019-01-03 15:01:00 +0000 (Thu, 03 Jan 2019)");
script_tag(name:"creation_date", value:"2015-08-20 06:45:25 +0200 (Thu, 20 Aug 2015)");
script_tag(name:"qod_type", value:"package");
script_name("RedHat Update for pam RHSA-2015:1640-01");
script_tag(name:"summary", value:"The remote host is missing an update for the 'pam'
package(s) announced via the referenced advisory.");
script_tag(name:"vuldetect", value:"Checks if a vulnerable version is present on the target host.");
script_tag(name:"insight", value:"Pluggable Authentication Modules (PAM) provide a system whereby
administrators can set up authentication policies without having to
recompile programs to handle authentication.
It was discovered that the _unix_run_helper_binary() function of PAM's
unix_pam module could write to a blocking pipe, possibly causing the
function to become unresponsive. An attacker able to supply large passwords
to the unix_pam module could use this flaw to enumerate valid user
accounts, or cause a denial of service on the system. (CVE-2015-3238)
Red Hat would like to thank Sebastien Macke of Trustwave SpiderLabs for
reporting this issue.
All pam users are advised to upgrade to this updated package, which
contains a backported patch to correct this issue.");
script_tag(name:"affected", value:"pam on Red Hat Enterprise Linux Desktop (v. 6),
Red Hat Enterprise Linux Server (v. 6),
Red Hat Enterprise Linux Server (v. 7),
Red Hat Enterprise Linux Workstation (v. 6)");
script_tag(name:"solution", value:"Please Install the Updated Packages.");
script_xref(name:"RHSA", value:"2015:1640-01");
script_xref(name:"URL", value:"https://www.redhat.com/archives/rhsa-announce/2015-August/msg00031.html");
script_tag(name:"solution_type", value:"VendorFix");
script_category(ACT_GATHER_INFO);
script_copyright("Copyright (C) 2015 Greenbone AG");
script_family("Red Hat Local Security Checks");
script_dependencies("gather-package-list.nasl");
script_mandatory_keys("ssh/login/rhel", "ssh/login/rpms", re:"ssh/login/release=RHENT_(7|6)");
exit(0);
}
include("revisions-lib.inc");
include("pkg-lib-rpm.inc");
release = rpm_get_ssh_release();
if(!release) exit(0);
res = "";
if(release == "RHENT_7")
{
if ((res = isrpmvuln(pkg:"pam", rpm:"pam~1.1.8~12.el7_1.1", rls:"RHENT_7")) != NULL)
{
security_message(data:res);
exit(0);
}
if ((res = isrpmvuln(pkg:"pam-debuginfo", rpm:"pam-debuginfo~1.1.8~12.el7_1.1", rls:"RHENT_7")) != NULL)
{
security_message(data:res);
exit(0);
}
if ((res = isrpmvuln(pkg:"pam-devel", rpm:"pam-devel~1.1.8~12.el7_1.1", rls:"RHENT_7")) != NULL)
{
security_message(data:res);
exit(0);
}
if (__pkg_match) exit(99);
exit(0);
}
if(release == "RHENT_6")
{
if ((res = isrpmvuln(pkg:"pam", rpm:"pam~1.1.1~20.el6_7.1", rls:"RHENT_6")) != NULL)
{
security_message(data:res);
exit(0);
}
if ((res = isrpmvuln(pkg:"pam-debuginfo", rpm:"pam-debuginfo~1.1.1~20.el6_7.1", rls:"RHENT_6")) != NULL)
{
security_message(data:res);
exit(0);
}
if ((res = isrpmvuln(pkg:"pam-devel", rpm:"pam-devel~1.1.1~20.el6_7.1", rls:"RHENT_6")) != NULL)
{
security_message(data:res);
exit(0);
}
if (__pkg_match) exit(99);
exit(0);
}
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:N/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
LOW
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
AI Score
Confidence
High
EPSS
Percentile
76.3%