The version of log4j installed on the remote host is prior to 1.2.17-18. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2022-1750 advisory.
JMSSink in all versions of Log4j 1.x is vulnerable to deserialization of untrusted data when the attacker has write access to the Log4j configuration or if the configuration references an LDAP service the attacker has access to. The attacker can provide a TopicConnectionFactoryBindingName configuration causing JMSSink to perform JNDI requests that result in remote code execution in a similar fashion to CVE-2021-4104. Note this issue only affects Log4j 1.x when specifically configured to use JMSSink, which is not the default. Apache Log4j 1.2 reached end of life in August 2015. Users should upgrade to Log4j 2 as it addresses numerous other issues from the previous versions. (CVE-2022-23302)
By design, the JDBCAppender in Log4j 1.2.x accepts an SQL statement as a configuration parameter where the values to be inserted are converters from PatternLayout. The message converter, %m, is likely to always be included. This allows attackers to manipulate the SQL by entering crafted strings into input fields or headers of an application that are logged allowing unintended SQL queries to be executed. Note this issue only affects Log4j 1.x when specifically configured to use the JDBCAppender, which is not the default.
Beginning in version 2.0-beta8, the JDBCAppender was re-introduced with proper support for parameterized SQL queries and further customization over the columns written to in logs. Apache Log4j 1.2 reached end of life in August 2015. Users should upgrade to Log4j 2 as it addresses numerous other issues from the previous versions. (CVE-2022-23305)
CVE-2020-9493 identified a deserialization issue that was present in Apache Chainsaw. Prior to Chainsaw V2.0 Chainsaw was a component of Apache Log4j 1.2.x where the same issue exists. (CVE-2022-23307)
Note that Nessus has not tested for this issue but has instead relied only on the applicationâs self-reported version number.
#%NASL_MIN_LEVEL 70300
##
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Amazon Linux 2 Security Advisory ALAS-2022-1750.
##
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(158210);
script_version("1.5");
script_set_attribute(attribute:"plugin_modification_date", value:"2023/11/07");
script_cve_id("CVE-2022-23302", "CVE-2022-23305", "CVE-2022-23307");
script_xref(name:"ALAS", value:"2022-1750");
script_name(english:"Amazon Linux 2 : log4j (ALAS-2022-1750)");
script_set_attribute(attribute:"synopsis", value:
"The remote Amazon Linux 2 host is missing a security update.");
script_set_attribute(attribute:"description", value:
"The version of log4j installed on the remote host is prior to 1.2.17-18. It is, therefore, affected by multiple
vulnerabilities as referenced in the ALAS2-2022-1750 advisory.
- JMSSink in all versions of Log4j 1.x is vulnerable to deserialization of untrusted data when the attacker
has write access to the Log4j configuration or if the configuration references an LDAP service the
attacker has access to. The attacker can provide a TopicConnectionFactoryBindingName configuration causing
JMSSink to perform JNDI requests that result in remote code execution in a similar fashion to
CVE-2021-4104. Note this issue only affects Log4j 1.x when specifically configured to use JMSSink, which
is not the default. Apache Log4j 1.2 reached end of life in August 2015. Users should upgrade to Log4j 2
as it addresses numerous other issues from the previous versions. (CVE-2022-23302)
- By design, the JDBCAppender in Log4j 1.2.x accepts an SQL statement as a configuration parameter where the
values to be inserted are converters from PatternLayout. The message converter, %m, is likely to always be
included. This allows attackers to manipulate the SQL by entering crafted strings into input fields or
headers of an application that are logged allowing unintended SQL queries to be executed. Note this issue
only affects Log4j 1.x when specifically configured to use the JDBCAppender, which is not the default.
Beginning in version 2.0-beta8, the JDBCAppender was re-introduced with proper support for parameterized
SQL queries and further customization over the columns written to in logs. Apache Log4j 1.2 reached end of
life in August 2015. Users should upgrade to Log4j 2 as it addresses numerous other issues from the
previous versions. (CVE-2022-23305)
- CVE-2020-9493 identified a deserialization issue that was present in Apache Chainsaw. Prior to Chainsaw
V2.0 Chainsaw was a component of Apache Log4j 1.2.x where the same issue exists. (CVE-2022-23307)
Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/AL2/ALAS-2022-1750.html");
script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/cve/html/CVE-2022-23302.html");
script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/cve/html/CVE-2022-23305.html");
script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/cve/html/CVE-2022-23307.html");
script_set_attribute(attribute:"solution", value:
"Run 'yum update log4j' to update your system.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:C");
script_set_cvss_temporal_vector("CVSS2#E:F/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
script_set_cvss3_temporal_vector("CVSS:3.0/E:F/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2022-23307");
script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2022-23305");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_set_attribute(attribute:"vuln_publication_date", value:"2022/01/18");
script_set_attribute(attribute:"patch_publication_date", value:"2022/02/15");
script_set_attribute(attribute:"plugin_publication_date", value:"2022/02/21");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:log4j");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:log4j-javadoc");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:log4j-manual");
script_set_attribute(attribute:"cpe", value:"cpe:/o:amazon:linux:2");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Amazon Linux Local Security Checks");
script_copyright(english:"This script is Copyright (C) 2022-2023 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/AmazonLinux/release", "Host/AmazonLinux/rpm-list");
exit(0);
}
include("audit.inc");
include("global_settings.inc");
include("rpm.inc");
if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var release = get_kb_item("Host/AmazonLinux/release");
if (isnull(release) || !strlen(release)) audit(AUDIT_OS_NOT, "Amazon Linux");
var os_ver = pregmatch(pattern: "^AL(A|\d)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Amazon Linux");
var os_ver = os_ver[1];
if (os_ver != "2")
{
if (os_ver == 'A') os_ver = 'AMI';
audit(AUDIT_OS_NOT, "Amazon Linux 2", "Amazon Linux " + os_ver);
}
if (!get_kb_item("Host/AmazonLinux/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
var pkgs = [
{'reference':'log4j-1.2.17-18.amzn2', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'log4j-javadoc-1.2.17-18.amzn2', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'log4j-manual-1.2.17-18.amzn2', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE}
];
var flag = 0;
foreach package_array ( pkgs ) {
var reference = NULL;
var release = NULL;
var cpu = NULL;
var el_string = NULL;
var rpm_spec_vers_cmp = NULL;
var allowmaj = NULL;
if (!empty_or_null(package_array['reference'])) reference = package_array['reference'];
if (!empty_or_null(package_array['release'])) release = package_array['release'];
if (!empty_or_null(package_array['cpu'])) cpu = package_array['cpu'];
if (!empty_or_null(package_array['el_string'])) el_string = package_array['el_string'];
if (!empty_or_null(package_array['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = package_array['rpm_spec_vers_cmp'];
if (!empty_or_null(package_array['allowmaj'])) allowmaj = package_array['allowmaj'];
if (reference && release) {
if (rpm_check(release:release, cpu:cpu, reference:reference, el_string:el_string, rpm_spec_vers_cmp:rpm_spec_vers_cmp, allowmaj:allowmaj)) flag++;
}
}
if (flag)
{
security_report_v4(
port : 0,
severity : SECURITY_HOLE,
extra : rpm_report_get()
);
exit(0);
}
else
{
var tested = pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, "log4j / log4j-javadoc / log4j-manual");
}
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-23302
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-23305
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-23307
alas.aws.amazon.com/AL2/ALAS-2022-1750.html
alas.aws.amazon.com/cve/html/CVE-2022-23302.html
alas.aws.amazon.com/cve/html/CVE-2022-23305.html
alas.aws.amazon.com/cve/html/CVE-2022-23307.html