VAR-200609-0397
Vulnerability from variot - Updated: 2025-04-03 22:37Cross-site scripting (XSS) vulnerability in Cisco Guard DDoS Mitigation Appliance before 5.1(6), when anti-spoofing is enabled, allows remote attackers to inject arbitrary web script or HTML via certain character sequences in a URL that are not properly handled when the appliance sends a meta-refresh. Cisco Guard is prone to a cross-site scripting vulnerability because it fails to properly sanitize user-supplied input. An attacker can exploit this issue to have arbitrary script code execute in the browser of an unsuspecting user in the context of the visited site. This may help the attacker steal cookie-based authentication credentials and launch other attacks. When anti-spoofing is enabled, a remote attacker can pass certain URLs that are not properly processed when the device sends metadata refresh. Character sequences injected into arbitrary web script or HTML.
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The vulnerability is caused due to insufficient filtering of a meta-refresh before it is being returned to a user. If Cisco Guard is running in active basic protection, going through basic/redirect protection, this can be exploited to execute HTML and script code in a user's browser session by e.g. tricking a user into following a specially crafted URL.
The vulnerability affects the following products: - Cisco Guard Appliance version 3.X - Cisco Guard Blade version 4.X - Cisco Guard Appliance versions 5.0(3) and 5.1(5)
SOLUTION: Update to version 5.1(6) or later.
PROVIDED AND/OR DISCOVERED BY: Reported by the vendor.
ORIGINAL ADVISORY: http://www.cisco.com/warp/public/707/cisco-sa-20060920-guardxss.shtml
About: This Advisory was delivered by Secunia as a free service to help everybody keeping their systems up to date against the latest vulnerabilities.
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
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.
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