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VAR-200212-0439

Vulnerability from variot - Updated: 2023-12-18 12:47

Cisco IOS 11.1 through 12.2, when HSRP support is not enabled, allows remote attackers to cause a denial of service (CPU consumption) via randomly sized UDP packets to the Hot Standby Routing Protocol (HSRP) port 1985. Cisco IOS Random size on the router that runs UDP Interfering with service operation by sending packets (DoS) There is a vulnerability that becomes a condition.Cisco IOS The router that operates is interrupted service operation (DoS) It may be in a state. IOS is the Internet Operating System, used on Cisco routers. It is distributed and maintained by Cisco. Hot Standby Routing Protocol (HSRP) is a protocol used to allow multiple routers to dynamically act as backups in the event of router failure. HSRP traffic takes place over UDP port 1985. A vulnerability has been reported with some Cisco products. If malformed HSRP traffic is received when HSRP support is not enabled, vulnerable products may reach high CPU utilization. Under these conditions, the router may fail to respond to additional network traffic, resulting in degraded performance and a denial of service condition. When the HSRP 1985 UDP communication port is opened in the CISCO router configuration, but HSRP is not configured, the attacker can submit random data to this port, which can cause the router to process these random information, resulting in increased CPU utilization and slower response, but will not causing a reboot

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CVE-2002-1768 (GCVE-0-2002-1768)

Vulnerability from cvelistv5 – Published: 2005-06-21 04:00 – Updated: 2024-08-08 03:34

Summary

Severity

No CVSS data available.

CWE

Assigner

mitre CNA under the mitre root

CNA scorecard E 29/100 over 2175 records in the last 180 days details

References

4 references

URL	Tags
http://archives.neohapsis.com/archives/bugtraq/20…	mailing-listx_refsource_BUGTRAQ
https://exchange.xforce.ibmcloud.com/vulnerabilit…	vdb-entryx_refsource_XF
http://archives.neohapsis.com/archives/bugtraq/20…	mailing-listx_refsource_BUGTRAQ
http://www.securityfocus.com/bid/4948	vdb-entryx_refsource_BID

Date Public

2002-06-05 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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