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nessusThis script is Copyright (C) 2022-2023 and is owned by Tenable, Inc. or an Affiliate thereof.AIX_IJ36815.NASL
HistoryJan 11, 2022 - 12:00 a.m.

AIX 7.2 TL 5 : lscore (IJ36815)

2022-01-1100:00:00
This script is Copyright (C) 2022-2023 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
25

4.6 Medium

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

7.8 High

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

0.0004 Low

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");
VendorProductVersionCPE
ibmaix7.2cpe:/o:ibm:aix:7.2

4.6 Medium

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

7.8 High

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

0.0004 Low

EPSS

Percentile

5.1%

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