5.8 Medium
AI Score
Confidence
High
7.5 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
0.043 Low
EPSS
Percentile
92.2%
OpenSSH is prone to a remote memory-corruption vulnerability.
# SPDX-FileCopyrightText: 2014 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
CPE = "cpe:/a:openbsd:openssh";
if(description)
{
script_oid("1.3.6.1.4.1.25623.1.0.105001");
script_cve_id("CVE-2014-1692");
script_version("2023-07-26T05:05:09+0000");
script_name("OpenSSH 'schnorr.c' Remote Memory Corruption Vulnerability");
script_tag(name:"cvss_base", value:"7.5");
script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:P/I:P/A:P");
script_tag(name:"last_modification", value:"2023-07-26 05:05:09 +0000 (Wed, 26 Jul 2023)");
script_tag(name:"creation_date", value:"2014-04-09 12:35:11 +0200 (Wed, 09 Apr 2014)");
script_category(ACT_GATHER_INFO);
script_family("General");
script_copyright("Copyright (C) 2014 Greenbone AG");
script_dependencies("gb_openssh_consolidation.nasl");
script_mandatory_keys("openssh/detected");
script_xref(name:"URL", value:"http://www.securityfocus.com/bid/65230");
script_tag(name:"impact", value:"An attacker can exploit this issue to execute arbitrary code in
context of the application. Failed exploits may result in denial-of-service conditions.");
script_tag(name:"vuldetect", value:"Checks if a vulnerable version is present on the target host.");
script_tag(name:"insight", value:"The hash_buffer function in schnorr.c in OpenSSH through 6.4,
when Makefile.inc is modified to enable the J-PAKE protocol, does not
initialize certain data structures, which might allow remote attackers
to cause a denial of service (memory corruption) or have unspecified
other impact via vectors that trigger an error condition.");
script_tag(name:"solution", value:"Updates are available. Please see the references for more information.");
script_tag(name:"summary", value:"OpenSSH is prone to a remote memory-corruption vulnerability.");
script_tag(name:"affected", value:"OpenSSH 6.4 and prior with J-PAKE implemented are vulnerable.");
script_tag(name:"qod_type", value:"remote_banner_unreliable");
script_tag(name:"solution_type", value:"VendorFix");
exit(0);
}
include("version_func.inc");
include("host_details.inc");
if( isnull( port = get_app_port( cpe:CPE ) ) )
exit( 0 );
if( ! infos = get_app_version_and_location( cpe:CPE, port:port, exit_no_version:TRUE ) )
exit( 0 );
vers = infos["version"];
path = infos["location"];
if( version_is_less_equal( version:vers, test_version:"6.4" ) ) {
report = report_fixed_ver( installed_version:vers, fixed_version:"See references", install_path:path );
security_message( port:port, data:report );
exit( 0 );
}
exit( 99 );