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nessusThis script is Copyright (C) 2024 and is owned by Tenable, Inc. or an Affiliate thereof.EULEROS_SA-2023-2842.NASL
HistoryJan 16, 2024 - 12:00 a.m.

EulerOS 2.0 SP11 : golang (EulerOS-SA-2023-2842)

2024-01-1600:00:00
This script is Copyright (C) 2024 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
11
euleros
golang
security vulnerabilities
cve-2023-29402
setuid
setgid
build time
cgo
linker flags
gc compiler
gccgo compiler
unix platforms

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

7.7 High

AI Score

Confidence

Low

0.005 Low

EPSS

Percentile

77.3%

According to the versions of the golang packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  • The go command may generate unexpected code at build time when using cgo. This may result in unexpected behavior when running a go program which uses cgo. This may occur when running an untrusted module which contains directories with newline characters in their names. Modules which are retrieved using the go command, i.e. via ‘go get’, are not affected (modules retrieved using GOPATH-mode, i.e. GO111MODULE=off, may be affected). (CVE-2023-29402)

  • On Unix platforms, the Go runtime does not behave differently when a binary is run with the setuid/setgid bits. This can be dangerous in certain cases, such as when dumping memory state, or assuming the status of standard i/o file descriptors. If a setuid/setgid binary is executed with standard I/O file descriptors closed, opening any files can result in unexpected content being read or written with elevated privileges.
    Similarly, if a setuid/setgid program is terminated, either via panic or signal, it may leak the contents of its registers. (CVE-2023-29403)

  • The go command may execute arbitrary code at build time when using cgo. This may occur when running ‘go get’ on a malicious module, or when running any other command which builds untrusted code. This is can by triggered by linker flags, specified via a ‘#cgo LDFLAGS’ directive. The arguments for a number of flags which are non-optional are incorrectly considered optional, allowing disallowed flags to be smuggled through the LDFLAGS sanitization. This affects usage of both the gc and gccgo compilers. (CVE-2023-29404)

  • The go command may execute arbitrary code at build time when using cgo. This may occur when running ‘go get’ on a malicious module, or when running any other command which builds untrusted code. This is can by triggered by linker flags, specified via a ‘#cgo LDFLAGS’ directive. Flags containing embedded spaces are mishandled, allowing disallowed flags to be smuggled through the LDFLAGS sanitization by including them in the argument of another flag. This only affects usage of the gccgo compiler. (CVE-2023-29405)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
##

include('compat.inc');

if (description)
{
  script_id(188895);
  script_version("1.0");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/01/16");

  script_cve_id(
    "CVE-2023-29402",
    "CVE-2023-29403",
    "CVE-2023-29404",
    "CVE-2023-29405"
  );
  script_xref(name:"IAVB", value:"2023-B-0040-S");
  script_xref(name:"IAVB", value:"2023-B-0080-S");

  script_name(english:"EulerOS 2.0 SP11 : golang (EulerOS-SA-2023-2842)");

  script_set_attribute(attribute:"synopsis", value:
"The remote EulerOS host is missing multiple security updates.");
  script_set_attribute(attribute:"description", value:
"According to the versions of the golang packages installed, the EulerOS installation on the remote host is affected by
the following vulnerabilities :

  - The go command may generate unexpected code at build time when using cgo. This may result in unexpected
    behavior when running a go program which uses cgo. This may occur when running an untrusted module which
    contains directories with newline characters in their names. Modules which are retrieved using the go
    command, i.e. via 'go get', are not affected (modules retrieved using GOPATH-mode, i.e. GO111MODULE=off,
    may be affected). (CVE-2023-29402)

  - On Unix platforms, the Go runtime does not behave differently when a binary is run with the setuid/setgid
    bits. This can be dangerous in certain cases, such as when dumping memory state, or assuming the status of
    standard i/o file descriptors. If a setuid/setgid binary is executed with standard I/O file descriptors
    closed, opening any files can result in unexpected content being read or written with elevated privileges.
    Similarly, if a setuid/setgid program is terminated, either via panic or signal, it may leak the contents
    of its registers. (CVE-2023-29403)

  - The go command may execute arbitrary code at build time when using cgo. This may occur when running 'go
    get' on a malicious module, or when running any other command which builds untrusted code. This is can by
    triggered by linker flags, specified via a '#cgo LDFLAGS' directive. The arguments for a number of flags
    which are non-optional are incorrectly considered optional, allowing disallowed flags to be smuggled
    through the LDFLAGS sanitization. This affects usage of both the gc and gccgo compilers. (CVE-2023-29404)

  - The go command may execute arbitrary code at build time when using cgo. This may occur when running 'go
    get' on a malicious module, or when running any other command which builds untrusted code. This is can by
    triggered by linker flags, specified via a '#cgo LDFLAGS' directive. Flags containing embedded spaces are
    mishandled, allowing disallowed flags to be smuggled through the LDFLAGS sanitization by including them in
    the argument of another flag. This only affects usage of the gccgo compiler. (CVE-2023-29405)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security
advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional
issues.");
  # https://developer.huaweicloud.com/ict/en/site-euleros/euleros/security-advisories/EulerOS-SA-2023-2842
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?6d4e7921");
  script_set_attribute(attribute:"solution", value:
"Update the affected golang packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:U/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:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2023-29405");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"vuln_publication_date", value:"2023/06/08");
  script_set_attribute(attribute:"patch_publication_date", value:"2023/09/20");
  script_set_attribute(attribute:"plugin_publication_date", value:"2024/01/16");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:golang");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:golang-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:golang-help");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:huawei:euleros:2.0");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Huawei Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 2024 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/EulerOS/release", "Host/EulerOS/rpm-list", "Host/EulerOS/sp");
  script_exclude_keys("Host/EulerOS/uvp_version");

  exit(0);
}

include("rpm.inc");

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);

var _release = get_kb_item("Host/EulerOS/release");
if (isnull(_release) || _release !~ "^EulerOS") audit(AUDIT_OS_NOT, "EulerOS");
var uvp = get_kb_item("Host/EulerOS/uvp_version");
if (_release !~ "^EulerOS release 2\.0(\D|$)") audit(AUDIT_OS_NOT, "EulerOS 2.0 SP11");

var sp = get_kb_item("Host/EulerOS/sp");
if (isnull(sp) || sp !~ "^(11)$") audit(AUDIT_OS_NOT, "EulerOS 2.0 SP11");

if (!empty_or_null(uvp)) audit(AUDIT_OS_NOT, "EulerOS 2.0 SP11", "EulerOS UVP " + uvp);

if (!get_kb_item("Host/EulerOS/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

var cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$" && "aarch64" >!< cpu && "x86" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "EulerOS", cpu);
if ("aarch64" >!< cpu) audit(AUDIT_ARCH_NOT, "aarch64", cpu);

var flag = 0;

var pkgs = [
  "golang-1.17.3-1.h22.eulerosv2r11",
  "golang-devel-1.17.3-1.h22.eulerosv2r11",
  "golang-help-1.17.3-1.h22.eulerosv2r11"
];

foreach (var pkg in pkgs)
  if (rpm_check(release:"EulerOS-2.0", sp:"11", reference:pkg)) 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, "golang");
}
VendorProductVersionCPE
huaweieulerosgolangp-cpe:/a:huawei:euleros:golang
huaweieulerosgolang-develp-cpe:/a:huawei:euleros:golang-devel
huaweieulerosgolang-helpp-cpe:/a:huawei:euleros:golang-help
huaweieuleros2.0cpe:/o:huawei:euleros:2.0

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

7.7 High

AI Score

Confidence

Low

0.005 Low

EPSS

Percentile

77.3%