VAR-201405-0302
Vulnerability from variot - Updated: 2025-04-13 23:25Unspecified vulnerability in the Diffie-Hellman key agreement implementation in the management GUI Java applet in Citrix NetScaler Application Delivery Controller (ADC) and NetScaler Gateway before 9.3-66.5 and 10.x before 10.1-122.17 has unknown impact and vectors. Citrix NetScaler is prone to an unspecified security vulnerability. Little is known about this issue or its effects at this time. We will update this BID as more information emerges. There are currently no details about this vulnerability. Please keep an eye on the cnnvd website or manufacturer announcements. Vulnerability title: Poor Quality Implementation of Diffie-Hellman Key Exchange in Citrix Netscaler CVE: CVE-2014-2881 Vendor: Citrix Product: Netscaler Affected version: All prior to 10.1-122.17/9.3-66.5 Fixed version: 10.1-122.17/9.3-66.5 Reported by: Graham Sutherland
Details:
The remote configuration Java applet contains a poor implementation of the Diffie-Hellman key exchange algorithm. The random number generator used to produce secret values is the java.util.Random class, which is not of cryptographic quality. Publicly known predictors exist for the underlying RNG, and the seed is either 32-bit or 48-bit depending on the host system.
Furthermore, the selection of the secret 'a' value within the key generation process is potentially vulnerable to timing attacks that leak the RNG state, as the implementation loops until the RNG outputs a value within a publicly known range.
Further details at: https://www.portcullis-security.com/security-research-and-downloads/security-advisories/cve-2014-2881/
Copyright: Copyright (c) Portcullis Computer Security Limited 2014, All rights reserved worldwide. Permission is hereby granted for the electronic redistribution of this information. It is not to be edited or altered in any way without the express written consent of Portcullis Computer Security Limited.
Disclaimer: The information herein contained may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall the author/distributor (Portcullis Computer Security Limited) be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information
Show details on source website{
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"data": "Unspecified vulnerability in the Diffie-Hellman key agreement implementation in the management GUI Java applet in Citrix NetScaler Application Delivery Controller (ADC) and NetScaler Gateway before 9.3-66.5 and 10.x before 10.1-122.17 has unknown impact and vectors. Citrix NetScaler is prone to an unspecified security vulnerability. \nLittle is known about this issue or its effects at this time. We will update this BID as more information emerges. There are currently no details about this vulnerability. Please keep an eye on the cnnvd website or manufacturer announcements. Vulnerability title: Poor Quality Implementation of Diffie-Hellman Key\nExchange in Citrix Netscaler\nCVE: CVE-2014-2881\nVendor: Citrix\nProduct: Netscaler\nAffected version: All prior to 10.1-122.17/9.3-66.5\nFixed version: 10.1-122.17/9.3-66.5\nReported by: Graham Sutherland\n\nDetails:\n\nThe remote configuration Java applet contains a poor implementation of\nthe Diffie-Hellman key exchange algorithm. The random number generator\nused to produce secret values is the java.util.Random class, which is\nnot of cryptographic quality. Publicly known predictors exist for the\nunderlying RNG, and the seed is either 32-bit or 48-bit depending on the\nhost system. \n\nFurthermore, the selection of the secret \u0027a\u0027 value within the key\ngeneration process is potentially vulnerable to timing attacks that leak\nthe RNG state, as the implementation loops until the RNG outputs a value\nwithin a publicly known range. \n \n\nFurther details at:\nhttps://www.portcullis-security.com/security-research-and-downloads/security-advisories/cve-2014-2881/\n\n\nCopyright:\nCopyright (c) Portcullis Computer Security Limited 2014, All rights\nreserved worldwide. Permission is hereby granted for the electronic\nredistribution of this information. It is not to be edited or altered in\nany way without the express written consent of Portcullis Computer\nSecurity Limited. \n\nDisclaimer:\nThe information herein contained may change without notice. Use of this\ninformation constitutes acceptance for use in an AS IS condition. There\nare NO warranties, implied or otherwise, with regard to this information\nor its use. Any use of this information is at the user\u0027s risk. In no\nevent shall the author/distributor (Portcullis Computer Security\nLimited) be held liable for any damages whatsoever arising out of or in\nconnection with the use or spread of this information",
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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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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.