CVE-2021-31385— Juniper Networks Junos OS 路径遍历漏洞
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I. CVE-2021-31385の基本情報
脆弱性情報
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脆弱性タイトル
Junos OS: J-Web: A path traversal vulnerability allows an authenticated attacker to elevate their privileges to root
ソース: NVD (National Vulnerability Database)
脆弱性説明
An Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability in J-Web of Juniper Networks Junos OS allows any low-privileged authenticated attacker to elevate their privileges to root. This issue affects: Juniper Networks Junos OS 12.3 versions prior to 12.3R12-S19; 15.1 versions prior to 15.1R7-S10; 18.3 versions prior to 18.3R3-S5; 18.4 versions prior to 18.4R3-S9; 19.1 versions prior to 19.1R3-S6; 19.2 versions prior to 19.2R1-S7, 19.2R3-S3; 19.3 versions prior to 19.3R3-S3; 19.4 versions prior to 19.4R3-S5; 20.1 versions prior to 20.1R2-S2, 20.1R3-S1; 20.2 versions prior to 20.2R3-S2; 20.3 versions prior to 20.3R3; 20.4 versions prior to 20.4R2-S1, 20.4R3; 21.1 versions prior to 21.1R1-S1, 21.1R2.
ソース: NVD (National Vulnerability Database)
CVSS情報
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
ソース: NVD (National Vulnerability Database)
脆弱性タイプ
对路径名的限制不恰当(路径遍历)
ソース: NVD (National Vulnerability Database)
脆弱性タイトル
Juniper Networks Junos OS 路径遍历漏洞
ソース: CNNVD (China National Vulnerability Database)
脆弱性説明
Juniper Networks Junos OS是美国瞻博网络（Juniper Networks）公司的一套专用于该公司的硬件设备的网络操作系统。该操作系统提供了安全编程接口和Junos SDK。 Juniper Networks Junos OS 存在路径遍历漏洞，该漏洞源于Juniper Networks Junos OS 的 J-Web 中的路径名限制不当（“路径遍历”）漏洞允许任何低权限的经过身份验证的攻击者将其权限提升到 root。
ソース: CNNVD (China National Vulnerability Database)
CVSS情報
N/A
ソース: CNNVD (China National Vulnerability Database)
脆弱性タイプ
N/A
ソース: CNNVD (China National Vulnerability Database)
影響を受ける製品
| ベンダー | プロダクト | 影響を受けるバージョン | CPE | 購読 |
|---|---|---|---|---|
| Juniper Networks | Junos OS | 12.3 ~ 12.3R12-S19 | - | |
| Juniper Networks | Junos OS | 15.1 ~ 15.1R7-S10 | - |
II. CVE-2021-31385の公開POC
| # | POC説明 | ソースリンク | Shenlongリンク |
|---|
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CVE-2021-31385 厂商安全公告 (1)
- https://kb.juniper.net/JSA11253x_refsource_CONFIRM
Same Patch Batch · Juniper Networks · 2021-10-19 · 42 CVEs total
| CVE-2021-31349 | 9.8 CRITICAL | Session Smart Router: Authentication Bypass Vulnerability |
| CVE-2021-31372 | 8.8 HIGH | Junos OS: J-Web allows a locally authenticated attacker to escalate their privileges to ro |
| CVE-2021-31373 | 8.0 HIGH | Junos OS: SRX Series: Persistent XSS vulnerability in J-Web |
| CVE-2021-31355 | 8.0 HIGH | Junos OS: Stored Cross-Site Scripting (XSS) vulnerability in captive portal |
| CVE-2021-31359 | 7.8 HIGH | Junos OS and Junos OS Evolved: Local Privilege Escalation vulnerability |
| CVE-2021-31358 | 7.8 HIGH | Junos OS Evolved: shell-injection vulnerabilities in evo_sftp UI wrapper script |
| CVE-2021-31357 | 7.8 HIGH | Junos OS Evolved: shell-injection vulnerabilities in evo_tcpdump UI wrapper script |
| CVE-2021-31356 | 7.8 HIGH | Junos OS Evolved: Multiple shell-injection vulnerabilities in EVO UI wrapper scripts |
| CVE-2021-31376 | 7.5 HIGH | Junos OS: ACX Series: Packet Forwarding Engine manager (FXPC) process crashes when process |
| CVE-2021-31368 | 7.5 HIGH | Junos OS: EX2300 Series, EX3400 Series, and ACX710 might become unresponsive if the out-of |
| CVE-2021-31374 | 7.5 HIGH | Junos OS and Junos OS Evolved: RPD crash while processing a specially crafted BGP UPDATE o |
| CVE-2021-31353 | 7.5 HIGH | Junos OS and Junos OS Evolved: RPD core upon receipt of specific BGP update |
| CVE-2021-31351 | 7.5 HIGH | Junos OS: MX Series: Receipt of specific packet on MS-MPC/MS-MIC causes line card reset |
| CVE-2021-31379 | 7.5 HIGH | Junos OS: MX Series: MPC 7/8/9/10/11 cards with MAP-E: PFE halts when an attacker sends ma |
| CVE-2021-31350 | 7.5 HIGH | Junos OS and Junos OS Evolved: Privilege escalation vulnerability in Juniper Extension Too |
| CVE-2021-0299 | 7.5 HIGH | Junos OS: Kernel crash (vmcore) upon receipt of a malformed IPv6 packet |
| CVE-2021-31383 | 7.5 HIGH | Junos OS and Junos OS Evolved: In Point to MultiPoint (P2MP) scenarios receipt of various |
| CVE-2021-0296 | 7.4 HIGH | CTPView: HSTS not being enforced on CTPView server. |
| CVE-2021-31384 | 7.2 HIGH | Junos OS: SRX Series: Under a specific device configuration an attacker can access the dev |
| CVE-2021-31375 | 7.2 HIGH | Junos OS: Receipt of a specific BGP update may cause RPKI policy-checks to be bypassed |
Showing 20 of 42 CVEs. View all on vendor page →
IV. 関連脆弱性
同じ製品: Junos OS
- CVE-2026-57054
Junos OS: MX Series: Web filtering doesn't block specificall - CVE-2026-57032
Junos OS: EX Series: Subscribing to an unsupported telemetry - CVE-2026-57031
Junos OS: MX Series: For subscribers configured on static in - CVE-2026-57030
Junos OS: SRX Series: Flow sessions are not getting cleared - CVE-2026-57027
Junos OS: EX4100 Series, EX4400: With sFlow configured in a
同じベンダー: Juniper Networks
- CVE-2026-57054
Junos OS: MX Series: Web filtering doesn't block specificall - CVE-2026-57032
Junos OS: EX Series: Subscribing to an unsupported telemetry - CVE-2026-57031
Junos OS: MX Series: For subscribers configured on static in - CVE-2026-57030
Junos OS: SRX Series: Flow sessions are not getting cleared - CVE-2026-57029
Junos OS Evolved: QFX Series: When sFlow collector reachabil
同じ弱点: CWE-22
- CVE-2026-15751
mastergo-design mastergo-magic-mcp mcp__getComponentGenerato - CVE-2026-54684
jadx: XAPK archive entries with absolute paths can plant dro - CVE-2026-59733
rclone `serve restic --private-repos` authorization bypass: - CVE-2026-59732
rclone archive extract allows S3 destination prefix escape v - CVE-2026-48318
ColdFusion | Improper Limitation of a Pathname to a Restrict
V. CVE-2021-31385へのコメント
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