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openvasCopyright (C) 2024 Greenbone AGOPENVAS:1361412562311220241533
HistoryApr 22, 2024 - 12:00 a.m.

Huawei EulerOS: Security Advisory for openssh (EulerOS-SA-2024-1533)

2024-04-2200:00:00
Copyright (C) 2024 Greenbone AG
plugins.openvas.org
16
euleros
openssh
package update
os command injection
terrapin attack
cve-2023-48795
cve-2023-51385
ssh transport protocol
openssh before 9.6
integrity checks
security features
bypass
remote attackers
handshake phase
sequence numbers
chacha20-poly1305
cbc
encrypt-then-mac
binary packet protocol
ssh binary packet protocol
maverick synergy java ssh api
dropbear
ssh
putty
asyncssh
golang.org/x/crypto
libssh
libssh2
thorn tech sftp gateway
tera term
paramiko
jsch
sftpgo
netgate pfsense plus
netgate pfsense ce
hpn-ssh
proftpd
oryx cyclonessh
netsarang xshell
crushftp
connectbot ssh library
apache mina sshd
sshj
tinyssh
trilead-ssh2
lancom lcos
lanconfig
filezilla
nova
pkix-ssh
securecrt
transmit5
win32-openssh
winscp
bitvise ssh server

6.5 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

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

6.5 Medium

AI Score

Confidence

High

0.963 High

EPSS

Percentile

99.5%

The remote host is missing an update for the Huawei EulerOS

# SPDX-FileCopyrightText: 2024 Greenbone AG
# Some text descriptions might be excerpted from (a) referenced
# source(s), and are Copyright (C) by the respective right holder(s).
#
# SPDX-License-Identifier: GPL-2.0-only

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.1.2.2024.1533");
  script_cve_id("CVE-2023-48795", "CVE-2023-51385");
  script_tag(name:"creation_date", value:"2024-04-22 04:14:21 +0000 (Mon, 22 Apr 2024)");
  script_version("2024-04-23T05:05:27+0000");
  script_tag(name:"last_modification", value:"2024-04-23 05:05:27 +0000 (Tue, 23 Apr 2024)");
  script_tag(name:"cvss_base", value:"6.4");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:P/I:P/A:N");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2024-01-03 19:40:07 +0000 (Wed, 03 Jan 2024)");

  script_name("Huawei EulerOS: Security Advisory for openssh (EulerOS-SA-2024-1533)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2024 Greenbone AG");
  script_family("Huawei EulerOS Local Security Checks");
  script_dependencies("gb_huawei_euleros_consolidation.nasl");
  script_mandatory_keys("ssh/login/euleros", "ssh/login/rpms", re:"ssh/login/release=EULEROSVIRT\-2\.10\.0");

  script_xref(name:"Advisory-ID", value:"EulerOS-SA-2024-1533");
  script_xref(name:"URL", value:"https://developer.huaweicloud.com/intl/en-us/euleros/securitydetail.html?secId=EulerOS-SA-2024-1533");

  script_tag(name:"summary", value:"The remote host is missing an update for the Huawei EulerOS 'openssh' package(s) announced via the EulerOS-SA-2024-1533 advisory.");

  script_tag(name:"vuldetect", value:"Checks if a vulnerable package version is present on the target host.");

  script_tag(name:"insight", value:"In ssh in OpenSSH before 9.6, OS command injection might occur if a user name or host name has shell metacharacters, and this name is referenced by an expansion token in certain situations. For example, an untrusted Git repository can have a submodule with shell metacharacters in a user name or host name.(CVE-2023-51385)

The SSH transport protocol with certain OpenSSH extensions, found in OpenSSH before 9.6 and other products, allows remote attackers to bypass integrity checks such that some packets are omitted (from the extension negotiation message), and a client and server may consequently end up with a connection for which some security features have been downgraded or disabled, aka a Terrapin attack. This occurs because the SSH Binary Packet Protocol (BPP), implemented by these extensions, mishandles the handshake phase and mishandles use of sequence numbers. For example, there is an effective attack against SSH's use of ChaCha20-Poly1305 (and CBC with Encrypt-then-MAC). The bypass occurs in [email protected] and (if CBC is used) the [email protected] MAC algorithms. This also affects Maverick Synergy Java SSH API before 3.1.0-SNAPSHOT, Dropbear through 2022.83, Ssh before 5.1.1 in Erlang/OTP, PuTTY before 0.80, AsyncSSH before 2.14.2, golang.org/x/crypto before 0.17.0, libssh before 0.10.6, libssh2 through 1.11.0, Thorn Tech SFTP Gateway before 3.4.6, Tera Term before 5.1, Paramiko before 3.4.0, jsch before 0.2.15, SFTPGo before 2.5.6, Netgate pfSense Plus through 23.09.1, Netgate pfSense CE through 2.7.2, HPN-SSH through 18.2.0, ProFTPD before 1.3.8b (and before 1.3.9rc2), ORYX CycloneSSH before 2.3.4, NetSarang XShell 7 before Build 0144, CrushFTP before 10.6.0, ConnectBot SSH library before 2.2.22, Apache MINA sshd through 2.11.0, sshj through 0.37.0, TinySSH through 20230101, trilead-ssh2 6401, LANCOM LCOS and LANconfig, FileZilla before 3.66.4, Nova before 11.8, PKIX-SSH before 14.4, SecureCRT before 9.4.3, Transmit5 before 5.10.4, Win32-OpenSSH before 9.5.0.0p1-Beta, WinSCP before 6.2.2, Bitvise SSH Server before 9.32, Bitvise SSH Client before 9.33, KiTTY through 0.76.1.13, the net-ssh gem 7.2.0 for Ruby, the mscdex ssh2 module before 1.15.0 for Node.js, the thrussh library before 0.35.1 for Rust, and the Russh crate before 0.40.2 for Rust.(CVE-2023-48795)");

  script_tag(name:"affected", value:"'openssh' package(s) on Huawei EulerOS Virtualization release 2.10.0.");

  script_tag(name:"solution", value:"Please install the updated package(s).");

  script_tag(name:"solution_type", value:"VendorFix");
  script_tag(name:"qod_type", value:"package");

  exit(0);
}

include("revisions-lib.inc");
include("pkg-lib-rpm.inc");

release = rpm_get_ssh_release();
if(!release)
  exit(0);

res = "";
report = "";

if(release == "EULEROSVIRT-2.10.0") {

  if(!isnull(res = isrpmvuln(pkg:"openssh", rpm:"openssh~8.2p1~9.h55.eulerosv2r10", rls:"EULEROSVIRT-2.10.0"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"openssh-clients", rpm:"openssh-clients~8.2p1~9.h55.eulerosv2r10", rls:"EULEROSVIRT-2.10.0"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"openssh-server", rpm:"openssh-server~8.2p1~9.h55.eulerosv2r10", rls:"EULEROSVIRT-2.10.0"))) {
    report += res;
  }

  if(report != "") {
    security_message(data:report);
  } else if(__pkg_match) {
    exit(99);
  }
  exit(0);
}

exit(0);

6.5 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

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

6.5 Medium

AI Score

Confidence

High

0.963 High

EPSS

Percentile

99.5%