NVD Vulnerability Detail
Search Exploit, PoC
CVE-2021-1572
Summary

A vulnerability in ConfD could allow an authenticated, local attacker to execute arbitrary commands at the level of the account under which ConfD is running, which is commonly root. To exploit this vulnerability, an attacker must have a valid account on an affected device. The vulnerability exists because the affected software incorrectly runs the SFTP user service at the privilege level of the account that was running when the ConfD built-in Secure Shell (SSH) server for CLI was enabled. If the ConfD built-in SSH server was not enabled, the device is not affected by this vulnerability. An attacker with low-level privileges could exploit this vulnerability by authenticating to an affected device and issuing a series of commands at the SFTP interface. A successful exploit could allow the attacker to elevate privileges to the level of the account under which ConfD is running, which is commonly root. Note: Any user who can authenticate to the built-in SSH server may exploit this vulnerability. By default, all ConfD users have this access if the server is enabled. Software updates that address this vulnerability have been released.

Publication Date Aug. 5, 2021, 3:15 a.m.
Registration Date Aug. 5, 2021, 10 a.m.
Last Update Nov. 21, 2024, 2:44 p.m.
CVSS3.1 : HIGH
スコア 7.8
Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
攻撃元区分(AV) ローカル
攻撃条件の複雑さ(AC)
攻撃に必要な特権レベル(PR)
利用者の関与(UI) 不要
影響の想定範囲(S) 変更なし
機密性への影響(C)
完全性への影響(I)
可用性への影響(A)
CVSS2.0 : MEDIUM
Score 6.9
Vector AV:L/AC:M/Au:N/C:C/I:C/A:C
攻撃元区分(AV) ローカル
攻撃条件の複雑さ(AC)
攻撃前の認証要否(Au) 不要
機密性への影響(C)
完全性への影響(I)
可用性への影響(A)
Get all privileges. いいえ
Get user privileges いいえ
Get other privileges いいえ
User operation required いいえ
Affected software configurations
Configuration1 or higher or less more than less than
cpe:2.3:a:cisco:confd:*:*:*:*:*:*:*:* 7.4 7.4.3
cpe:2.3:a:cisco:confd:*:*:*:*:*:*:*:* 7.5 7.5.2
cpe:2.3:a:cisco:network_services_orchestrator:*:*:*:*:*:*:*:* 5.5 5.5.2.2
cpe:2.3:a:cisco:network_services_orchestrator:*:*:*:*:*:*:*:* 5.4 5.4.3.1
Related information, measures and tools
Common Vulnerabilities List

JVN Vulnerability Information
ConfD における権限管理に関する脆弱性
Title ConfD における権限管理に関する脆弱性
Summary

ConfD には、権限管理に関する脆弱性が存在します。

Possible impacts 情報を取得される、情報を改ざんされる、およびサービス運用妨害 (DoS) 状態にされる可能性があります。
Solution

ベンダより正式な対策が公開されています。ベンダ情報を参照して適切な対策を実施してください。

Publication Date Aug. 4, 2021, midnight
Registration Date May 18, 2022, 3:21 p.m.
Last Update May 18, 2022, 3:21 p.m.
Affected System
シスコシステムズ
Cisco Network Services Orchestrator 
ConfD 
CVE (情報セキュリティ 共通脆弱性識別子)
CWE (共通脆弱性タイプ一覧)
ベンダー情報
Change Log
No Changed Details Date of change
1 [2022年05月18日]
  掲載
May 18, 2022, 3:21 p.m.