CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:L/AC:L/Au:N/C:P/I:P/A:P
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS
Percentile
5.1%
https://vulners.com/cve/CVE-2021-38991 https://vulners.com/cve/CVE-2021-38991 IBM AIX could allow a non-privileged local user to exploit a vulnerability in the lscore command which could lead to code execution.
#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The text in the description was extracted from AIX Security
# Advisory lscore_advisory.asc.
#
include('deprecated_nasl_level.inc');
include("compat.inc");
if (description)
{
script_id(156596);
script_version("1.4");
script_set_attribute(attribute:"plugin_modification_date", value:"2023/04/20");
script_cve_id("CVE-2021-38991");
script_name(english:"AIX 7.2 TL 5 : lscore (IJ36815)");
script_summary(english:"Check for APAR IJ36815");
script_set_attribute(
attribute:"synopsis",
value:"The remote AIX host is missing a security patch."
);
script_set_attribute(
attribute:"description",
value:
"http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-38991
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-38991 IBM AIX
could allow a non-privileged local user to exploit a vulnerability in
the lscore command which could lead to code execution."
);
script_set_attribute(
attribute:"see_also",
value:"https://aix.software.ibm.com/aix/efixes/security/lscore_advisory.asc"
);
script_set_attribute(
attribute:"solution",
value:"Install the appropriate interim fix."
);
script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:P/I:P/A:P");
script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H");
script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2021-38991");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"exploit_available", value:"false");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"cpe:/o:ibm:aix:7.2");
script_set_attribute(attribute:"vuln_publication_date", value:"2022/01/10");
script_set_attribute(attribute:"patch_publication_date", value:"2022/01/10");
script_set_attribute(attribute:"plugin_publication_date", value:"2022/01/11");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2022-2023 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_family(english:"AIX Local Security Checks");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/AIX/lslpp", "Host/local_checks_enabled", "Host/AIX/version");
exit(0);
}
include("audit.inc");
include("global_settings.inc");
include("aix.inc");
include("misc_func.inc");
if ( ! get_kb_item("Host/local_checks_enabled") ) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if ( ! get_kb_item("Host/AIX/version") ) audit(AUDIT_OS_NOT, "AIX");
if ( ! get_kb_item("Host/AIX/lslpp") ) audit(AUDIT_PACKAGE_LIST_MISSING);
if ( get_kb_item("Host/AIX/emgr_failure" ) ) exit(0, "This iFix check is disabled because : "+get_kb_item("Host/AIX/emgr_failure") );
flag = 0;
if (aix_check_ifix(release:"7.2", ml:"05", sp:"01", patch:"IJ36815s2a", package:"bos.rte.security", minfilesetver:"7.2.5.0", maxfilesetver:"7.2.5.1") < 0) flag++;
if (aix_check_ifix(release:"7.2", ml:"05", sp:"01", patch:"IJ36815s2a", package:"bos.rte.security", minfilesetver:"7.2.5.100", maxfilesetver:"7.2.5.101") < 0) flag++;
if (aix_check_ifix(release:"7.2", ml:"05", sp:"02", patch:"IJ36815s2a", package:"bos.rte.security", minfilesetver:"7.2.5.0", maxfilesetver:"7.2.5.1") < 0) flag++;
if (aix_check_ifix(release:"7.2", ml:"05", sp:"02", patch:"IJ36815s2a", package:"bos.rte.security", minfilesetver:"7.2.5.100", maxfilesetver:"7.2.5.101") < 0) flag++;
if (flag)
{
if (report_verbosity > 0) security_warning(port:0, extra:aix_report_get());
else security_warning(0);
exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");
CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:L/AC:L/Au:N/C:P/I:P/A:P
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS
Percentile
5.1%