MEDIUM🚩 CISA KEV⚡ EXPLOIT🇵🇱 Wersja polska

CVE-2023-36844

CVSS 5.3v3.1pub. 2023-08-17upd. 2025-10-24

A PHP External Variable Modification vulnerability in J-Web of Juniper Networks Junos OS on EX Series allows an unauthenticated, network-based attacker to control certain, important environment variables. Using a crafted request an attacker is able to modify certain PHP environment variables leading to partial loss of integrity, which may allow chaining to other vulnerabilities. This issue affects Juniper Networks Junos OS on EX Series: * All versions prior to 20.4R3-S9; * 21.1 versions 21.1R1 and later; * 21.2 versions prior to 21.2R3-S7; * 21.3 versions prior to 21.3R3-S5; * 21.4 versions prior to 21.4R3-S5; * 22.1 versions prior to 22.1R3-S4; * 22.2 versions prior to 22.2R3-S2; * 22.3 versions prior to 22.3R3-S1; * 22.4 versions prior to 22.4R2-S2, 22.4R3; * 23.2 versions prior to 23.2R1-S1, 23.2R2.

CVSS Vector

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

Juniper Ex2200
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Juniper
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Juniper Ex2200 C
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Juniper
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Juniper Ex2200 Vc
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Juniper
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Juniper Ex2300
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Juniper
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Juniper Ex2300 24mp
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Juniper
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Juniper Ex2300 24p
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Juniper
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Juniper Ex2300 24t
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Juniper
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Juniper Ex2300 48mp
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Juniper
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Juniper Ex2300 48p
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Juniper
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Juniper Ex2300 48t
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Juniper
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Juniper Ex2300 C
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Juniper
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Juniper Ex2300m
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Juniper
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Juniper Ex3200
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Juniper
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Juniper Ex3300
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Juniper
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Juniper Ex3300 Vc
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Juniper
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Juniper Ex3400
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Juniper
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Juniper Ex4200
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Juniper
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Juniper Ex4200 Vc
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Juniper
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Juniper Ex4300
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Juniper
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Juniper Ex4300 24p
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Juniper
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Juniper Ex4300 24p S
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Juniper
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Juniper Ex4300 24t
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Juniper
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Juniper Ex4300 24t S
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Juniper
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Juniper Ex4300 32f
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Juniper
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Juniper Ex4300 32f Dc
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Juniper
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Juniper Ex4300 32f S
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Juniper
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Juniper Ex4300 48mp
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Juniper
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Juniper Ex4300 48mp S
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Juniper
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Juniper Ex4300 48p
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Juniper
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Juniper Ex4300 48p S
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Juniper
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CISA KEV — detailsi

Vendori: Juniper
Producti: Junos OS
Added to KEVi: November 13, 2023
Remediation deadline (US Federal)i: November 17, 2023(overdue)

🇺🇸CISA KEV (original)↗

Required action (CISA)i

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

CISA descriptioni

Juniper Junos OS on EX Series contains a PHP external variable modification vulnerability that allows an unauthenticated, network-based attacker to control certain, important environment variables. Using a crafted request an attacker is able to modify certain PHP environment variables, leading to partial loss of integrity, which may allow chaining to other vulnerabilities.

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