An Improper Handling of Exceptional Conditions vulnerability in the Class of Service daemon (cosd) of Juniper Networks Junos OS allows an authenticated, network-based attacker with low privileges to cause a limited Denial of Service (DoS).
In a scaled CoS scenario with 1000s of interfaces, when specific low privileged commands, received over NETCONF, SSH or telnet, are handled by cosd on behalf of mgd, the respective child management daemon (mgd) processes will get stuck. In case of (Netconf over) SSH this leads to stuck SSH sessions, so that when the connection-limit for SSH is reached, new sessions can't be established anymore. A similar behavior will be seen for telnet etc.
Stuck mgd processes can be monitored by executing the following command:
user@host> show system processes extensive | match mgd | match sbwait
This issue affects Juniper Networks Junos OS:
* All versions earlier than 20.4R3-S9;
* 21.2 versions earlier than 21.2R3-S7;
* 21.3 versions earlier than 21.3R3-S5;
* 21.4 versions earlier than 21.4R3-S5;
* 22.1 versions earlier than 22.1R3-S4;
* 22.2 versions earlier than 22.2R3-S3;
* 22.3 versions earlier than 22.3R3-S2;
* 22.4 versions earlier than 22.4R3;
* 23.2 versions earlier than 23.2R1-S2, 23.2R2.
References
| Link | Resource |
|---|---|
| http://supportportal.juniper.net/JSA75751 | Vendor Advisory |
| http://supportportal.juniper.net/JSA75751 | Vendor Advisory |
| https://www.first.org/cvss/calculator/4.0#CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N | Not Applicable |
Configurations
Configuration 1 (hide)
| AND |
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History
19 May 2025, 10:15
| Type | Values Removed | Values Added |
|---|---|---|
| References | () http://supportportal.juniper.net/JSA75751 - Vendor Advisory | |
| References | () https://www.first.org/cvss/calculator/4.0#CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N - Not Applicable | |
| CWE | NVD-CWE-noinfo | |
| CPE | cpe:2.3:o:juniper:junos:20.4:-:*:*:*:*:*:* cpe:2.3:o:juniper:junos:*:*:*:*:*:*:*:* cpe:2.3:o:juniper:junos:22.4:r2-s2:*:*:*:*:*:* cpe:2.3:o:juniper:junos:21.3:r1-s2:*:*:*:*:*:* cpe:2.3:o:juniper:junos:22.2:r2:*:*:*:*:*:* cpe:2.3:o:juniper:junos:22.1:r2-s1:*:*:*:*:*:* cpe:2.3:o:juniper:junos:22.3:r2:*:*:*:*:*:* cpe:2.3:o:juniper:junos:22.3:r1:*:*:*:*:*:* cpe:2.3:o:juniper:junos:21.2:r1-s1:*:*:*:*:*:* cpe:2.3:h:juniper:mx150:-:*:*:*:*:*:*:* cpe:2.3:o:juniper:junos:22.4:r1-s2:*:*:*:*:*:* cpe:2.3:h:juniper:mx480:-:*:*:*:*:*:*:* cpe:2.3:o:juniper:junos:21.4:r2-s1:*:*:*:*:*:* cpe:2.3:o:juniper:junos:22.4:r2:*:*:*:*:*:* cpe:2.3:h:juniper:mx10008:-:*:*:*:*:*:*:* cpe:2.3:o:juniper:junos:23.2:r1:*:*:*:*:*:* cpe:2.3:o:juniper:junos:22.4:r1-s1:*:*:*:*:*:* cpe:2.3:o:juniper:junos:22.1:r1:*:*:*:*:*:* cpe:2.3:o:juniper:junos:21.2:r3-s2:*:*:*:*:*:* cpe:2.3:o:juniper:junos:21.3:r3-s4:*:*:*:*:*:* cpe:2.3:o:juniper:junos:23.2:r1-s1:*:*:*:*:*:* cpe:2.3:o:juniper:junos:23.2:-:*:*:*:*:*:* cpe:2.3:h:juniper:mx240:-:*:*:*:*:*:*:* cpe:2.3:o:juniper:junos:21.2:r2:*:*:*:*:*:* cpe:2.3:o:juniper:junos:22.3:-:*:*:*:*:*:* cpe:2.3:o:juniper:junos:20.4:r3-s2:*:*:*:*:*:* cpe:2.3:o:juniper:junos:22.1:-:*:*:*:*:*:* cpe:2.3:o:juniper:junos:21.2:r2-s2:*:*:*:*:*:* cpe:2.3:o:juniper:junos:21.4:r3-s3:*:*:*:*:*:* cpe:2.3:o:juniper:junos:22.4:r2-s1:*:*:*:*:*:* cpe:2.3:o:juniper:junos:21.3:r3-s3:*:*:*:*:*:* cpe:2.3:o:juniper:junos:22.4:r1:*:*:*:*:*:* cpe:2.3:o:juniper:junos:21.4:r2-s2:*:*:*:*:*:* cpe:2.3:o:juniper:junos:22.1:r2-s2:*:*:*:*:*:* cpe:2.3:o:juniper:junos:21.2:-:*:*:*:*:*:* cpe:2.3:o:juniper:junos:22.2:r1-s2:*:*:*:*:*:* cpe:2.3:o:juniper:junos:20.4:r3-s3:*:*:*:*:*:* cpe:2.3:o:juniper:junos:22.2:r3:*:*:*:*:*:* cpe:2.3:o:juniper:junos:22.3:r1-s2:*:*:*:*:*:* cpe:2.3:o:juniper:junos:22.3:r3:*:*:*:*:*:* cpe:2.3:o:juniper:junos:20.4:r2-s2:*:*:*:*:*:* cpe:2.3:o:juniper:junos:20.4:r2:*:*:*:*:*:* cpe:2.3:h:juniper:mx304:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:mx10003:-:*:*:*:*:*:*:* cpe:2.3:o:juniper:junos:21.3:r2-s1:*:*:*:*:*:* cpe:2.3:o:juniper:junos:21.2:r3-s5:*:*:*:*:*:* cpe:2.3:o:juniper:junos:20.4:r1-s1:*:*:*:*:*:* cpe:2.3:h:juniper:mx5:-:*:*:*:*:*:*:* cpe:2.3:o:juniper:junos:21.3:r3:*:*:*:*:*:* cpe:2.3:o:juniper:junos:22.1:r2:*:*:*:*:*:* cpe:2.3:h:juniper:mx2020:-:*:*:*:*:*:*:* cpe:2.3:o:juniper:junos:22.3:r1-s1:*:*:*:*:*:* cpe:2.3:o:juniper:junos:21.3:r1-s1:*:*:*:*:*:* cpe:2.3:o:juniper:junos:20.4:r3-s7:*:*:*:*:*:* cpe:2.3:h:juniper:mx10:-:*:*:*:*:*:*:* cpe:2.3:o:juniper:junos:22.4:-:*:*:*:*:*:* cpe:2.3:o:juniper:junos:21.3:-:*:*:*:*:*:* cpe:2.3:o:juniper:junos:22.3:r2-s2:*:*:*:*:*:* cpe:2.3:o:juniper:junos:22.2:r3-s2:*:*:*:*:*:* cpe:2.3:o:juniper:junos:22.2:r1-s1:*:*:*:*:*:* cpe:2.3:o:juniper:junos:21.2:r1:*:*:*:*:*:* cpe:2.3:o:juniper:junos:21.2:r3-s3:*:*:*:*:*:* cpe:2.3:o:juniper:junos:21.4:r3-s2:*:*:*:*:*:* cpe:2.3:o:juniper:junos:22.2:r1:*:*:*:*:*:* cpe:2.3:o:juniper:junos:21.3:r3-s2:*:*:*:*:*:* cpe:2.3:o:juniper:junos:22.1:r3-s1:*:*:*:*:*:* cpe:2.3:o:juniper:junos:21.4:r3:*:*:*:*:*:* cpe:2.3:o:juniper:junos:21.3:r1:*:*:*:*:*:* cpe:2.3:o:juniper:junos:21.2:r3-s1:*:*:*:*:*:* cpe:2.3:o:juniper:junos:22.2:r2-s1:*:*:*:*:*:* cpe:2.3:h:juniper:mx:-:*:*:*:*:*:*:* cpe:2.3:o:juniper:junos:20.4:r3-s5:*:*:*:*:*:* cpe:2.3:o:juniper:junos:21.4:r1:*:*:*:*:*:* cpe:2.3:o:juniper:junos:22.1:r3:*:*:*:*:*:* cpe:2.3:o:juniper:junos:20.4:r3-s6:*:*:*:*:*:* cpe:2.3:o:juniper:junos:22.2:-:*:*:*:*:*:* cpe:2.3:o:juniper:junos:21.4:r2:*:*:*:*:*:* cpe:2.3:o:juniper:junos:21.3:r2:*:*:*:*:*:* cpe:2.3:o:juniper:junos:20.4:r1:*:*:*:*:*:* cpe:2.3:o:juniper:junos:21.3:r3-s1:*:*:*:*:*:* cpe:2.3:h:juniper:mx10000:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:mx104:-:*:*:*:*:*:*:* cpe:2.3:o:juniper:junos:22.2:r2-s2:*:*:*:*:*:* cpe:2.3:o:juniper:junos:20.4:r3-s4:*:*:*:*:*:* cpe:2.3:o:juniper:junos:21.4:-:*:*:*:*:*:* cpe:2.3:o:juniper:junos:21.2:r1-s2:*:*:*:*:*:* cpe:2.3:o:juniper:junos:22.1:r1-s1:*:*:*:*:*:* cpe:2.3:o:juniper:junos:20.4:r2-s1:*:*:*:*:*:* cpe:2.3:o:juniper:junos:21.4:r3-s4:*:*:*:*:*:* cpe:2.3:o:juniper:junos:22.1:r3-s3:*:*:*:*:*:* cpe:2.3:o:juniper:junos:21.4:r3-s1:*:*:*:*:*:* cpe:2.3:h:juniper:mx10016:-:*:*:*:*:*:*:* cpe:2.3:o:juniper:junos:22.2:r3-s1:*:*:*:*:*:* cpe:2.3:o:juniper:junos:21.2:r3-s6:*:*:*:*:*:* cpe:2.3:o:juniper:junos:21.2:r2-s1:*:*:*:*:*:* cpe:2.3:o:juniper:junos:21.3:r2-s2:*:*:*:*:*:* cpe:2.3:o:juniper:junos:20.4:r3:*:*:*:*:*:* cpe:2.3:o:juniper:junos:22.3:r2-s1:*:*:*:*:*:* cpe:2.3:h:juniper:mx960:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:mx40:-:*:*:*:*:*:*:* cpe:2.3:o:juniper:junos:22.3:r3-s1:*:*:*:*:*:* cpe:2.3:h:juniper:mx80:-:*:*:*:*:*:*:* cpe:2.3:o:juniper:junos:21.2:r3:*:*:*:*:*:* cpe:2.3:o:juniper:junos:20.4:r3-s8:*:*:*:*:*:* cpe:2.3:h:juniper:mx2008:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:mx10004:-:*:*:*:*:*:*:* cpe:2.3:o:juniper:junos:21.4:r1-s2:*:*:*:*:*:* cpe:2.3:o:juniper:junos:21.2:r3-s4:*:*:*:*:*:* cpe:2.3:o:juniper:junos:22.1:r3-s2:*:*:*:*:*:* cpe:2.3:o:juniper:junos:21.4:r1-s1:*:*:*:*:*:* cpe:2.3:h:juniper:mx2010:-:*:*:*:*:*:*:* cpe:2.3:o:juniper:junos:22.1:r1-s2:*:*:*:*:*:* cpe:2.3:h:juniper:mx204:-:*:*:*:*:*:*:* cpe:2.3:o:juniper:junos:20.4:r3-s1:*:*:*:*:*:* |
|
| First Time |
Juniper mx240
Juniper mx104 Juniper mx80 Juniper mx10008 Juniper junos Juniper mx10016 Juniper mx Juniper mx2010 Juniper Juniper mx480 Juniper mx2020 Juniper mx5 Juniper mx2008 Juniper mx10 Juniper mx204 Juniper mx40 Juniper mx304 Juniper mx10000 Juniper mx10003 Juniper mx150 Juniper mx10004 Juniper mx960 |
|
| Summary | (en) An Improper Handling of Exceptional Conditions vulnerability in the Class of Service daemon (cosd) of Juniper Networks Junos OS allows an authenticated, network-based attacker with low privileges to cause a limited Denial of Service (DoS). In a scaled CoS scenario with 1000s of interfaces, when specific low privileged commands, received over NETCONF, SSH or telnet, are handled by cosd on behalf of mgd, the respective child management daemon (mgd) processes will get stuck. In case of (Netconf over) SSH this leads to stuck SSH sessions, so that when the connection-limit for SSH is reached, new sessions can't be established anymore. A similar behavior will be seen for telnet etc. Stuck mgd processes can be monitored by executing the following command: user@host> show system processes extensive | match mgd | match sbwait This issue affects Juniper Networks Junos OS: * All versions earlier than 20.4R3-S9; * 21.2 versions earlier than 21.2R3-S7; * 21.3 versions earlier than 21.3R3-S5; * 21.4 versions earlier than 21.4R3-S5; * 22.1 versions earlier than 22.1R3-S4; * 22.2 versions earlier than 22.2R3-S3; * 22.3 versions earlier than 22.3R3-S2; * 22.4 versions earlier than 22.4R3; * 23.2 versions earlier than 23.2R1-S2, 23.2R2. |
21 Nov 2024, 08:54
| Type | Values Removed | Values Added |
|---|---|---|
| References | () http://supportportal.juniper.net/JSA75751 - | |
| References | () https://www.first.org/cvss/calculator/4.0#CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N - |
16 May 2024, 20:15
| Type | Values Removed | Values Added |
|---|---|---|
| Summary | (en) An Improper Handling of Exceptional Conditions vulnerability in the Class of Service daemon (cosd) of Juniper Networks Junos OS on MX Series allows an authenticated, network-based attacker with low privileges to cause a limited Denial of Service (DoS). In a scaled subscriber scenario when specific low privileged commands, received over NETCONF, SSH or telnet, are handled by cosd on behalf of mgd, the respective child management daemon (mgd) processes will get stuck. In case of (Netconf over) SSH this leads to stuck SSH sessions, so that when the connection-limit for SSH is reached new sessions can't be established anymore. A similar behavior will be seen for telnet etc. Stuck mgd processes can be monitored by executing the following command: user@host> show system processes extensive | match mgd | match sbwait This issue affects Juniper Networks Junos OS on MX Series: All versions earlier than 20.4R3-S9; 21.2 versions earlier than 21.2R3-S7; 21.3 versions earlier than 21.3R3-S5; 21.4 versions earlier than 21.4R3-S5; 22.1 versions earlier than 22.1R3-S4; 22.2 versions earlier than 22.2R3-S3; 22.3 versions earlier than 22.3R3-S2; 22.4 versions earlier than 22.4R3; 23.2 versions earlier than 23.2R1-S2, 23.2R2. | |
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 4.3 |
15 Apr 2024, 13:15
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2024-04-12 15:15
Updated : 2025-05-19 10:15
NVD link : CVE-2024-21610
Mitre link : CVE-2024-21610
CVE.ORG link : CVE-2024-21610
JSON object : View
Products Affected
juniper
- mx480
- mx304
- mx10003
- mx
- mx150
- mx10000
- mx10004
- mx204
- mx40
- mx960
- mx10016
- mx2020
- mx104
- mx2010
- mx2008
- junos
- mx240
- mx10008
- mx10
- mx5
- mx80
CWE