#VU49560 Input validation error in Junos OS Evolved and Juniper Junos OS - CVE-2021-0208
Vulnerability identifier: #VU49560
Vulnerability risk: High
CVSSv4.0: 6.3 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]
CVE-ID:
CWE-ID:
CWE-20
Exploitation vector: Local network
Exploit availability: No
Vulnerable software:
Junos OS Evolved
Operating systems & Components /
Operating system
Juniper Junos OS
Operating systems & Components /
Operating system
Vendor: Juniper Networks, Inc.
Description
The vulnerability allows a remote attacker to compromise the affected system.
The vulnerability exists due to insufficient validation of user-supplied input in the Routing Protocol Daemon (RPD) service. A remote attacker can send specially crafted RSVP packets when bidirectional LSPs and perform a denial of service attack or execute arbitrary code on the system.
Mitigation
Install updates from vendor's website.
This issue affects:
Juniper Networks Junos OS:
- All versions prior to 17.3R3-S10 except 15.1X49-D240 for SRX series;
- 17.4 versions prior to 17.4R3-S2;
- 18.1 versions prior to 18.1R3-S10;
- 18.2 versions prior to 18.2R2-S7, 18.2R3-S4;
- 18.3 versions prior to 18.3R3-S2;
- 18.4 versions prior to 18.4R1-S8, 18.4R2-S6, 18.4R3-S2;
- 19.1 versions prior to 19.1R1-S5, 19.1R3-S3;
- 19.2 versions prior to 19.2R3;
- 19.3 versions prior to 19.3R2-S5, 19.3R3;
- 19.4 versions prior to 19.4R2-S2, 19.4R3-S1;
- 20.1 versions prior to 20.1R1-S4, 20.1R2;
- 15.1X49 versions prior to 15.1X49-D240 on SRX Series.
Juniper Networks Junos OS Evolved:
- 19.3 versions prior to 19.3R2-S5-EVO;
- 19.4 versions prior to 19.4R2-S2-EVO;
- 20.1 versions prior to 20.1R1-S4-EVO.
Vulnerable software versions
Junos OS Evolved: 19.4, 20.1R1-EVO, 20.1R1-S2-EVO, 20.1
Juniper Junos OS: 15.1F2-S1, 15.1F2-S2, 15.1F2-S3, 15.1F2-S4, 15.1F2-S5, 15.1F2-S6, 15.1F2-S7, 15.1F2-S8, 15.1F2-S9, 15.1F2-S10, 15.1F2-S11, 15.1F2-S12, 15.1F2-S13, 15.1F2-S14, 15.1F2-S15, 15.1F2-S16, 15.1F2-S17, 15.1F2-S18, 15.1F2-S19, 15.1F2-S20, 15.1R4-S1, 15.1R4-S2, 15.1R4-S3, 15.1R4-S4, 15.1R4-S5, 15.1R4-S6, 15.1R4-S7, 15.1F4-S1-J1, 15.1F4-S2, 15.1R4-S8, 15.1R4-S9, 15.1R5-S4, 15.1R5-S5, 15.1R5-S7, 15.1R5-S51, 15.1R5-S52, 15.1R5-S53, 15.1R5-S54, 15.1R5-S55, 15.1R5-S56, 15.1F5-S1, 15.1R5-S57, 15.1F5-S2, 15.1F5-S3, 15.1F5-S4, 15.1F5-S5, 15.1R6-S4, 15.1R6-S6, 15.1F6-S1, 15.1F6-S2, 15.1F6-S3, 15.1F6-S4, 15.1F6-S5, 15.1R6-S5, 15.1F6-S6, 15.1R6-S3, 15.1F6-S7, 15.1R6-S1, 15.1R6-S2, 15.1F6-S8, 15.1F6-S9, 15.1F6-S10, 15.1F6-S12, 15.1F6-S13, 15.1F7-S1, 15.1R7-S2, 15.1R7-S3, 15.1F7-S2, 15.1R7-S4, 15.1R7-S5, 15.1R7-S6, 15.1R7-S7, 15.1R7-S8, 15.1R7-S9, 15.1R7-S10, 15.1R7-S11, 15.1R7-S12, 15.1R7-S13, 15.1X49-D10, 15.1X49-D20, 15.1X49-D30, 15.1X49-D35, 15.1X49-D40, 15.1X49-D45, 15.1X49-D50, 15.1X49-D60, 15.1X49-D65, 15.1X49-D70, 15.1X49-D75, 15.1X49-D80, 15.1X49-D90, 15.1X49-D100, 15.1X49-D101, 15.1X49-D110, 15.1X49-D120, 15.1X49-D130, 15.1X49-D131, 15.1X49-D140, 15.1X49-D150, 15.1X49-D160, 15.1X49-D161, 15.1X49-D170, 15.1X49-D171, 15.1X49-D180, 15.1x49-D181, 15.1x49-D190, 15.1X49-D200, 15.1X49-D210, 15.1X49-D211, 15.1X49-D220, 15.1X49-D221, 15.1X49-D230, 15.1, 15.1R1, 15.1F1, 15.1R2, 15.1F2, 15.1R3, 15.1F3, 15.1R4, 15.1F4, 15.1R5, 15.1F5, 15.1R6, 15.1X49, 15.1F, 15.1R, 15.1F6, 15.1F7, 15.1R7, 17.3R1-S1, 17.3R1-S2, 17.3R1-S3, 17.3R1-S4, 17.3R2-S2, 17.3R2-S4, 17.3R2-S5, 17.3R3-S1, 17.3R3-S2, 17.3R3-S3, 17.3R3-S4, 17.3R3-S5, 17.3R3-S6, 17.3R3-S7, 17.3R3-S8, 17.3R3-S9, 17.3, 17.3R1, 17.3R2, 17.3R3, 17.4R1-S1, 17.4R1-S2, 17.4R1-S3, 17.4R1-S4, 17.4R1-S5, 17.4R1-S6, 17.4R1-S7, 17.4R1-S8, 17.4R2-S1, 17.4R2-S2, 17.4R2-S3, 17.4R2-S4, 17.4R2-S5, 17.4R2-S6, 17.4R2-S7, 17.4R2-S8, 17.4R2-S9, 17.4R2-S10, 17.4R2-S11, 17.4R2-S12, 17.4R2-S13, 17.4R3-S1, 17.4, 17.4R1, 17.4R2, 17.4R3, 18.1R2-S2, 18.1R2-S3, 18.1R2-S4, 18.1R3-S1, 18.1R3-S2, 18.1R3-S3, 18.1R3-S4, 18.1R3-S5, 18.1R3-S6, 18.1R3-S7, 18.1R3-S8, 18.1R3-S9, 18.1, 18.1R1, 18.1R2, 18.1R3, 18.2R1-S3, 18.2R1-S4, 18.2R1-S5, 18.2R2-S1, 18.2R2-S2, 18.2R2-S3, 18.2R2-S4, 18.2R2-S5, 18.2R2-S6, 18.2R2-S8, 18.2R3-S1, 18.2R3-S2, 18.2R3-S3, 18.2, 18.2R1, 18.2R2, 18.2R3, 18.3R1-S1, 18.3R1-S2, 18.3R1-S3, 18.3R1-S4, 18.3R1-S5, 18.3R1-S6, 18.3R1-S7, 18.3R2-S1, 18.3R2-S2, 18.3R2-S3, 18.3R2-S4, 18.3R3-S1, 18.3, 18.3R1, 18.3R2, 18.3R3, 18.4R1-S1, 18.4R1-S2, 18.4R1-S3, 18.4R1-S4, 18.4R1-S5, 18.4R1-S6, 18.4R1-S7, 18.4R2-S1, 18.4R2-S2, 18.4R2-S3, 18.4R2-S4, 18.4R2-S5, 18.4R2-S7, 18.4R2-S8, 18.4R2-S9, 18.4R2-S10, 18.4R3-S1, 18.4, 18.4R1, 18.4R2, 18.4R3, 19.1R1-S1, 19.1R1-S2, 19.1R1-S3, 19.1R1-S4, 19.1R1-S6, 19.1R2-S1, 19.1R2-S2, 19.1R2-S3, 19.1R3-S1, 19.1R3-S2, 19.1, 19.1R1, 19.1R2, 19.1R3, 19.1R, 19.2R1-S1, 19.2R1-S2, 19.2R1-S3, 19.2R1-S4, 19.2R1-S5, 19.2R1-S6, 19.2R1-S7, 19.2R1-S8, 19.2R1-S9, 19.2R2-S1, 19.2, 19.2R1, 19.2R2, 19.3R1-S1, 19.3R2-S1, 19.3R2-S2, 19.3R2-S3, 19.3R2-S4, 19.3R2-S6, 19.3R2-S7, 19.3, 19.3R1, 19.3R2, 19.4R1-S1, 19.4R1-S2, 19.4R1-S3, 19.4R1-S4, 19.4R2-S1, 19.4R2-S3, 19.4R2-S4, 19.4R2-S5, 19.4R2-S6, 19.4R2-S7, 19.4R2-S8, 19.4, 19.4R1, 19.4R2, 19.4R3, 20.1R1-S1, 20.1R1-S2, 20.1R1-S3, 20.1, 20.1R1, 20.2
External links
https://kb.juniper.net/InfoCenter/index?page=content&id=JSA11098&cat=SIRT_1&actp=LIST
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
