VAR-200708-0174
Vulnerability from variot - Updated: 2025-04-10 21:57Unspecified vulnerability in Cisco Unified Communications Manager (CUCM) 5.0, 5.1, and 6.0, and IOS 12.0 through 12.4, allows remote attackers to execute arbitrary code via a malformed SIP packet, aka CSCsi80102. (CSCsi80102)Arbitrary code may be executed by a third party. These issues pertain to the following protocols or features: Session Initiation Protocol (SIP) Media Gateway Control Protocol (MGCP) Signaling protocols H.323, H.254 Real-time Transport Protocol (RTP) Facsimile reception A remote attacker can exploit these issues to execute arbitrary code or cause denial-of-service conditions. Cisco IOS is the operating system used in Cisco networking equipment. Cisco IOS has loopholes in processing various protocol packets. Remote attackers may take advantage of these loopholes to make the device unavailable. 323 packets, RTP packets, or receiving a very large packet when receiving a fax, can cause the service to crash or the router to hang.
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The vulnerability is reported in versions 5.0, 5.1, and 6.0.
SOLUTION: Update to the fixed versions.
CUCM 5.0: Update to CUCM 5.1(2b).
CUCM 5.1(2b): http://www.cisco.com/pcgi-bin/tablebuild.pl/callmgr-51?psrtdcat20e2
CUCM 6.0(1a): http://www.cisco.com/pcgi-bin/tablebuild.pl/callmgr-60
PROVIDED AND/OR DISCOVERED BY: Reported by the vendor.
ORIGINAL ADVISORY: http://www.cisco.com/warp/public/707/cisco-sa-20070808-IOS-voice.shtml
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Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.
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
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.
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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.