CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:L/Au:S/C:P/I:P/A:N
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
EPSS
Percentile
79.3%
The version of curl installed on the remote host is prior to 7.61.1-12.101. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS-2022-1646 advisory.
An improper authentication vulnerability exists in curl 7.33.0 to and including 7.82.0 which might allow reuse OAUTH2-authenticated connections without properly making sure that the connection was authenticated with the same credentials as set for this transfer. This affects SASL-enabled protocols: SMPTP(S), IMAP(S), POP3(S) and LDAP(S) (openldap only). (CVE-2022-22576)
An insufficiently protected credentials vulnerability exists in curl 4.9 to and include curl 7.82.0 are affected that could allow an attacker to extract credentials when follows HTTP(S) redirects is used with authentication could leak credentials to other services that exist on different protocols or port numbers.
(CVE-2022-27774)
A insufficiently protected credentials vulnerability in fixed in curl 7.83.0 might leak authentication or cookie header data on HTTP redirects to the same host but another port number. (CVE-2022-27776)
libcurl provides the CURLOPT_CERTINFO
option to allow applications torequest details to be returned about a server’s certificate chain.Due to an erroneous function, a malicious server could make libcurl built withNSS get stuck in a never-ending busy-loop when trying to retrieve thatinformation.
(CVE-2022-27781)
libcurl would reuse a previously created connection even when a TLS or SSHrelated option had been changed that should have prohibited reuse.libcurl keeps previously used connections in a connection pool for subsequenttransfers to reuse if one of them matches the setup. However, several TLS andSSH settings were left out from the configuration match checks, making themmatch too easily. (CVE-2022-27782)
curl < 7.84.0 supports chained HTTP compression algorithms, meaning that a serverresponse can be compressed multiple times and potentially with different algorithms. The number of acceptable links in this decompression chain was unbounded, allowing a malicious server to insert a virtually unlimited number of compression steps.The use of such a decompression chain could result in a malloc bomb, makingcurl end up spending enormous amounts of allocated heap memory, or trying toand returning out of memory errors. (CVE-2022-32206)
When curl < 7.84.0 does FTP transfers secured by krb5, it handles message verification failures wrongly.
This flaw makes it possible for a Man-In-The-Middle attack to go unnoticed and even allows it to inject data to the client. (CVE-2022-32208)
When curl is used to retrieve and parse cookies from a HTTP(S) server, itaccepts cookies using control codes that when later are sent back to a HTTPserver might make the server return 400 responses.
Effectively allowing asister site to deny service to all siblings. (CVE-2022-35252)
Note that Nessus has not tested for these issues but has instead relied only on the application’s self-reported version number.
#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Amazon Linux AMI Security Advisory ALAS-2022-1646.
##
include('compat.inc');
if (description)
{
script_id(168600);
script_version("1.5");
script_set_attribute(attribute:"plugin_modification_date", value:"2023/09/15");
script_cve_id(
"CVE-2022-22576",
"CVE-2022-27774",
"CVE-2022-27776",
"CVE-2022-27781",
"CVE-2022-27782",
"CVE-2022-32206",
"CVE-2022-32208",
"CVE-2022-35252"
);
script_xref(name:"IAVA", value:"2022-A-0224-S");
script_xref(name:"IAVA", value:"2022-A-0255-S");
script_xref(name:"IAVA", value:"2022-A-0350-S");
script_xref(name:"CEA-ID", value:"CEA-2022-0026");
script_name(english:"Amazon Linux AMI : curl (ALAS-2022-1646)");
script_set_attribute(attribute:"synopsis", value:
"The remote Amazon Linux AMI host is missing a security update.");
script_set_attribute(attribute:"description", value:
"The version of curl installed on the remote host is prior to 7.61.1-12.101. It is, therefore, affected by multiple
vulnerabilities as referenced in the ALAS-2022-1646 advisory.
- An improper authentication vulnerability exists in curl 7.33.0 to and including 7.82.0 which might allow
reuse OAUTH2-authenticated connections without properly making sure that the connection was authenticated
with the same credentials as set for this transfer. This affects SASL-enabled protocols: SMPTP(S),
IMAP(S), POP3(S) and LDAP(S) (openldap only). (CVE-2022-22576)
- An insufficiently protected credentials vulnerability exists in curl 4.9 to and include curl 7.82.0 are
affected that could allow an attacker to extract credentials when follows HTTP(S) redirects is used with
authentication could leak credentials to other services that exist on different protocols or port numbers.
(CVE-2022-27774)
- A insufficiently protected credentials vulnerability in fixed in curl 7.83.0 might leak authentication or
cookie header data on HTTP redirects to the same host but another port number. (CVE-2022-27776)
- libcurl provides the `CURLOPT_CERTINFO` option to allow applications torequest details to be returned
about a server's certificate chain.Due to an erroneous function, a malicious server could make libcurl
built withNSS get stuck in a never-ending busy-loop when trying to retrieve thatinformation.
(CVE-2022-27781)
- libcurl would reuse a previously created connection even when a TLS or SSHrelated option had been changed
that should have prohibited reuse.libcurl keeps previously used connections in a connection pool for
subsequenttransfers to reuse if one of them matches the setup. However, several TLS andSSH settings were
left out from the configuration match checks, making themmatch too easily. (CVE-2022-27782)
- curl < 7.84.0 supports chained HTTP compression algorithms, meaning that a serverresponse can be
compressed multiple times and potentially with different algorithms. The number of acceptable links in
this decompression chain was unbounded, allowing a malicious server to insert a virtually unlimited
number of compression steps.The use of such a decompression chain could result in a malloc bomb,
makingcurl end up spending enormous amounts of allocated heap memory, or trying toand returning out of
memory errors. (CVE-2022-32206)
- When curl < 7.84.0 does FTP transfers secured by krb5, it handles message verification failures wrongly.
This flaw makes it possible for a Man-In-The-Middle attack to go unnoticed and even allows it to inject
data to the client. (CVE-2022-32208)
- When curl is used to retrieve and parse cookies from a HTTP(S) server, itaccepts cookies using control
codes that when later are sent back to a HTTPserver might make the server return 400 responses.
Effectively allowing asister site to deny service to all siblings. (CVE-2022-35252)
Note that Nessus has not tested for these issues 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/ALAS-2022-1646.html");
script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/cve/html/CVE-2022-22576.html");
script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/cve/html/CVE-2022-27774.html");
script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/cve/html/CVE-2022-27776.html");
script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/cve/html/CVE-2022-27781.html");
script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/cve/html/CVE-2022-27782.html");
script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/cve/html/CVE-2022-32206.html");
script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/cve/html/CVE-2022-32208.html");
script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/cve/html/CVE-2022-35252.html");
script_set_attribute(attribute:"solution", value:
"Run 'yum update curl' to update your system.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:P/I:P/A:N");
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:L/UI:N/S:U/C:H/I:H/A:N");
script_set_cvss3_temporal_vector("CVSS:3.0/E:F/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2022-22576");
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:"2022/04/28");
script_set_attribute(attribute:"patch_publication_date", value:"2022/12/01");
script_set_attribute(attribute:"plugin_publication_date", value:"2022/12/10");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:curl");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:curl-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:libcurl");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:libcurl-devel");
script_set_attribute(attribute:"cpe", value:"cpe:/o:amazon:linux");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_set_attribute(attribute:"stig_severity", value:"II");
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("rpm.inc");
if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var alas_release = get_kb_item("Host/AmazonLinux/release");
if (isnull(alas_release) || !strlen(alas_release)) audit(AUDIT_OS_NOT, "Amazon Linux");
var os_ver = pregmatch(pattern: "^AL(A|\d+|-\d+)", string:alas_release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Amazon Linux");
os_ver = os_ver[1];
if (os_ver != "A")
{
if (os_ver == 'A') os_ver = 'AMI';
audit(AUDIT_OS_NOT, "Amazon Linux AMI", "Amazon Linux " + os_ver);
}
if (!get_kb_item("Host/AmazonLinux/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
var pkgs = [
{'reference':'curl-7.61.1-12.101.amzn1', 'cpu':'i686', 'release':'ALA', 'rpm_spec_vers_cmp':TRUE},
{'reference':'curl-7.61.1-12.101.amzn1', 'cpu':'x86_64', 'release':'ALA', 'rpm_spec_vers_cmp':TRUE},
{'reference':'curl-debuginfo-7.61.1-12.101.amzn1', 'cpu':'i686', 'release':'ALA', 'rpm_spec_vers_cmp':TRUE},
{'reference':'curl-debuginfo-7.61.1-12.101.amzn1', 'cpu':'x86_64', 'release':'ALA', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libcurl-7.61.1-12.101.amzn1', 'cpu':'i686', 'release':'ALA', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libcurl-7.61.1-12.101.amzn1', 'cpu':'x86_64', 'release':'ALA', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libcurl-devel-7.61.1-12.101.amzn1', 'cpu':'i686', 'release':'ALA', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libcurl-devel-7.61.1-12.101.amzn1', 'cpu':'x86_64', 'release':'ALA', 'rpm_spec_vers_cmp':TRUE}
];
var flag = 0;
foreach var package_array ( pkgs ) {
var reference = NULL;
var _release = NULL;
var sp = NULL;
var _cpu = NULL;
var el_string = NULL;
var rpm_spec_vers_cmp = NULL;
var epoch = NULL;
var allowmaj = NULL;
var exists_check = 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['sp'])) sp = package_array['sp'];
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['epoch'])) epoch = package_array['epoch'];
if (!empty_or_null(package_array['allowmaj'])) allowmaj = package_array['allowmaj'];
if (!empty_or_null(package_array['exists_check'])) exists_check = package_array['exists_check'];
if (reference && _release && (!exists_check || rpm_exists(release:_release, rpm:exists_check))) {
if (rpm_check(release:_release, sp:sp, cpu:_cpu, reference:reference, epoch:epoch, el_string:el_string, rpm_spec_vers_cmp:rpm_spec_vers_cmp, allowmaj:allowmaj)) flag++;
}
}
if (flag)
{
security_report_v4(
port : 0,
severity : SECURITY_WARNING,
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, "curl / curl-debuginfo / libcurl / etc");
}
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-22576
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-27774
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-27776
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-27781
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-27782
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-32206
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-32208
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-35252
alas.aws.amazon.com/ALAS-2022-1646.html
alas.aws.amazon.com/cve/html/CVE-2022-22576.html
alas.aws.amazon.com/cve/html/CVE-2022-27774.html
alas.aws.amazon.com/cve/html/CVE-2022-27776.html
alas.aws.amazon.com/cve/html/CVE-2022-27781.html
alas.aws.amazon.com/cve/html/CVE-2022-27782.html
alas.aws.amazon.com/cve/html/CVE-2022-32206.html
alas.aws.amazon.com/cve/html/CVE-2022-32208.html
alas.aws.amazon.com/cve/html/CVE-2022-35252.html
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:L/Au:S/C:P/I:P/A:N
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
EPSS
Percentile
79.3%