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VAR-202010-0387

Vulnerability from variot - Updated: 2024-11-23 22:40

When DNS filtering is enabled on Juniper Networks Junos MX Series with one of the following cards MS-PIC, MS-MIC or MS-MPC, an incoming stream of packets processed by the Multiservices PIC Management Daemon (mspmand) process, responsible for managing "URL Filtering service", may crash, causing the Services PIC to restart. While the Services PIC is restarting, all PIC services including DNS filtering service (DNS sink holing) will be bypassed until the Services PIC completes its boot process. This vulnerability might allow an attacker to cause an extended Denial of Service (DoS) attack against the device and to cause clients to be vulnerable to DNS based attacks by malicious DNS servers when they send DNS requests through the device. As a result, devices which were once protected by the DNS Filtering service are no longer protected and at risk of exploitation. This issue affects Juniper Networks Junos OS: 17.3 versions prior to 17.3R3-S8; 18.3 versions prior to 18.3R3-S1; 18.4 versions prior to 18.4R3; 19.1 versions prior to 19.1R3; 19.2 versions prior to 19.2R2; 19.3 versions prior to 19.3R3. This issue does not affect Juniper Networks Junos OS 17.4, 18.1, and 18.2. Juniper Networks Junos MX Run on the series Junos OS Contains an unspecified vulnerability.Information is obtained, information is tampered with, and service is disrupted (DoS) It may be put into a state. The operating system provides a secure programming interface and Junos SDK. A security vulnerability exists in Junos OS MX that could be exploited by an attacker to trigger a fatal error through DNS filtering to trigger a denial of service

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CVE-2020-1660 (GCVE-0-2020-1660)

Vulnerability from cvelistv5 – Published: 2020-10-16 20:31 – Updated: 2024-09-16 19:36

Title

Junos OS: MX Series: Receipt of specific packets can cause services card to restart when DNS filtering is configured.

Summary

Severity

8.3 (High)


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

CWE

Denial of Service
CWE-362 - Race Condition (Concurrent Execution using Shared Resource with Improper Synchronization)

Assigner

juniper CNA under the mitre root

CNA scorecard B 84/100 over 193 records in the last 180 days details

References

1 reference

URL	Tags
https://kb.juniper.net/JSA11054	x_refsource_CONFIRM

Impacted products

2 products

Vendor	Product	Version
Juniper Networks	Junos OS	Affected: 17.3 , < 17.3R3-S8 (custom) Affected: 18.3 , < 18.3R3-S1 (custom) Affected: 18.4 , < 18.4R3 (custom) Affected: 19.1 , < 19.1R3 (custom) Affected: 19.2 , < 19.2R2 (custom) Affected: 19.3 , < 19.3R3 (custom)
Juniper Networks	Junos OS	Unaffected: 17.4 Unaffected: 18.1 Unaffected: 18.2

Date Public

2020-10-14 00:00

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

Order JSON

How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

Publication & reservation Sightings KEV catalogs Other timestamps

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

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