csirt@kutim:~/threat-intel/cve/CVE-2021-0268

Katalog CVE

CVSS 9.3 · Critical EPSS 0,85%

Kerentanan Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') pada juniper junos. Skor CVSS 3.1 9.3 (Critical) menurut NVD.

Deskripsi (NVD)

An Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Response Splitting') weakness in J-web of Juniper Networks Junos OS leads to buffer overflows, segment faults, or other impacts, which allows an attacker to modify the integrity of the device and exfiltration information from the device without authentication. The weakness can be exploited to facilitate cross-site scripting (XSS), cookie manipulation (modifying session cookies, stealing cookies) and more. This weakness can also be exploited by directing a user to a seemingly legitimate link from the affected site. The attacker requires no special access or permissions to the device to carry out such attacks. This issue affects: Juniper Networks Junos OS: 18.1 versions prior to 18.1R3-S11; 18.2 versions prior to 18.2R3-S5; 18.3 versions prior to 18.3R2-S4, 18.3R3-S3; 18.4 versions prior to 18.4R2-S5, 18.4R3-S3; 19.1 versions prior to 19.1R2-S2, 19.1R3-S2; 19.2 versions prior to 19.2R1-S5, 19.2R2; 19.3 versions prior to 19.3R3; 19.4 versions prior to 19.4R1-S3, 19.4R2, 19.4R3; 20.1 versions prior to 20.1R1-S2, 20.1R2. This issue does not affect Juniper Networks Junos OS versions prior to 18.1R1.

Rincian

Terbit di NVD
22 April 2021
Terakhir diubah
17 Juni 2026
Status NVD
Modified
CVSS 3.1
9.3 (Critical), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N · uraikan di kalkulator
Jenis kelemahan (CWE)
CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-113: Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Request/Response Splitting')
CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
EPSS (30 hari)
0,85% peluang dieksploitasi; lebih tinggi dari 57,1% CVE lain

Produk dan versi terdampak

VendorProdukVersi terdampak
juniper junos Versi 18.1
juniper junos Versi 18.1 r1
juniper junos Versi 18.1 r2
juniper junos Versi 18.1 r2-s1
juniper junos Versi 18.1 r2-s2
juniper junos Versi 18.1 r2-s4
juniper junos Versi 18.1 r3
juniper junos Versi 18.1 r3-s1
juniper junos Versi 18.1 r3-s10
juniper junos Versi 18.1 r3-s2
juniper junos Versi 18.1 r3-s3
juniper junos Versi 18.1 r3-s4
juniper junos Versi 18.1 r3-s5
juniper junos Versi 18.1 r3-s6
juniper junos Versi 18.1 r3-s7
juniper junos Versi 18.1 r3-s8
juniper junos Versi 18.1 r3-s9
juniper junos Versi 18.2
juniper junos Versi 18.2 r1
juniper junos Versi 18.2 r1-s2
juniper junos Versi 18.2 r1-s3
juniper junos Versi 18.2 r1-s4
juniper junos Versi 18.2 r1-s5
juniper junos Versi 18.2 r2
juniper junos Versi 18.2 r2-s1
juniper junos Versi 18.2 r2-s2
juniper junos Versi 18.2 r2-s3
juniper junos Versi 18.2 r2-s4
juniper junos Versi 18.2 r2-s5
juniper junos Versi 18.2 r2-s6
juniper junos Versi 18.2 r2-s7
juniper junos Versi 18.2 r3
juniper junos Versi 18.2 r3-s1
juniper junos Versi 18.2 r3-s2
juniper junos Versi 18.2 r3-s3
juniper junos Versi 18.2 r3-s4
juniper junos Versi 18.3
juniper junos Versi 18.3 r1
juniper junos Versi 18.3 r1-s1
juniper junos Versi 18.3 r1-s2
juniper junos Versi 18.3 r1-s3
juniper junos Versi 18.3 r1-s4
juniper junos Versi 18.3 r1-s5
juniper junos Versi 18.3 r1-s6
juniper junos Versi 18.3 r2
juniper junos Versi 18.3 r2-s1
juniper junos Versi 18.3 r2-s2
juniper junos Versi 18.3 r2-s3
juniper junos Versi 18.3 r3
juniper junos Versi 18.3 r3-s1
juniper junos Versi 18.3 r3-s2
juniper junos Versi 18.4
juniper junos Versi 18.4 r1
juniper junos Versi 18.4 r1-s1
juniper junos Versi 18.4 r1-s2
juniper junos Versi 18.4 r1-s3
juniper junos Versi 18.4 r1-s4
juniper junos Versi 18.4 r1-s5
juniper junos Versi 18.4 r1-s6
juniper junos Versi 18.4 r1-s7

> Data dari konfigurasi CPE di NVD. Ditampilkan 60 dari 99 konfigurasi; daftar lengkap ada di NVD.

Referensi dan perbaikan

Sumber: NVD · CVE.org · EPSS. Halaman ini disusun otomatis dari data tersebut; pembaruan terakhir 5 Okt 2026, 20:10 WITA. Kalau sistem di Perangkat Daerah memakai produk ini dan butuh bantuan, laporkan lewat kanal pelaporan.