VAR-201104-0093
Vulnerability from variot - Updated: 2025-04-11 23:10The PKI functionality in Cisco IOS 15.0 and 15.1 does not prevent permanent caching of certain public keys, which allows remote attackers to bypass authentication and have unspecified other impact by leveraging an IKE peer relationship in which a key was previously valid but later revoked, aka Bug ID CSCth82164, a different vulnerability than CVE-2010-4685. Cisco IOS of PKI Because the feature does not prevent the use of a persistent cache for a particular public key, there are vulnerabilities that are bypassed for authentication or otherwise unaffected. The problem is Bug ID CSCth82164 Is the problem of CVE-2010-4685 Is a different vulnerability.Keys that have been disabled from valid IKE Through peer relationships, authentication can be bypassed or other details can be affected. Cisco IOS is prone to a security-bypass vulnerability. Exploiting this issue can allow attackers to bypass certain security restrictions. Cisco IOS 15.0 and 15.1 are vulnerable. Cisco IOS is an operating system developed by Cisco in the United States for its network equipment. ----------------------------------------------------------------------
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TITLE: Cisco IOS OCSP Revoked Certificate Security Issue
SECUNIA ADVISORY ID: SA44363
VERIFY ADVISORY: Secunia.com http://secunia.com/advisories/44363/ Customer Area (Credentials Required) https://ca.secunia.com/?page=viewadvisory&vuln_id=44363
RELEASE DATE: 2011-04-27
DISCUSS ADVISORY: http://secunia.com/advisories/44363/#comments
AVAILABLE ON SITE AND IN CUSTOMER AREA: * Last Update * Popularity * Comments * Criticality Level * Impact * Where * Solution Status * Operating System / Software * CVE Reference(s)
http://secunia.com/advisories/44363/
ONLY AVAILABLE IN CUSTOMER AREA: * Authentication Level * Report Reliability * Secunia PoC * Secunia Analysis * Systems Affected * Approve Distribution * Remediation Status * Secunia CVSS Score * CVSS
https://ca.secunia.com/?page=viewadvisory&vuln_id=44363
ONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI: * AUTOMATED SCANNING
http://secunia.com/vulnerability_scanning/personal/ http://secunia.com/vulnerability_scanning/corporate/wsus_sccm_3rd_third_party_patching/
DESCRIPTION: A security issue has been reported in Cisco IOS, which can be exploited by malicious people to bypass certain security restrictions.
The security issue is caused due to an error in the OCSP functionality and can lead to a revoked certificate being successfully authenticated.
SOLUTION: Update to versions 15.1(1)S1 or 15.1(2)T2.
PROVIDED AND/OR DISCOVERED BY: Reported by the vendor.
ORIGINAL ADVISORY: http://www.cisco.com/en/US/docs/ios/15_1s/release/notes/15_1s_caveats_15_1_1s.html http://www.cisco.com/en/US/docs/ios/15_1/release/notes/151-2TCAVS.html
OTHER REFERENCES: Further details available in Customer Area: http://secunia.com/products/corporate/EVM/
DEEP LINKS: Further details available in Customer Area: http://secunia.com/products/corporate/EVM/
EXTENDED DESCRIPTION: Further details available in Customer Area: http://secunia.com/products/corporate/EVM/
EXTENDED SOLUTION: Further details available in Customer Area: http://secunia.com/products/corporate/EVM/
EXPLOIT: Further details available in Customer Area: http://secunia.com/products/corporate/EVM/
About: This Advisory was delivered by Secunia as a free service to help private users keeping their systems up to date against the latest vulnerabilities.
Subscribe: http://secunia.com/advisories/secunia_security_advisories/
Definitions: (Criticality, Where etc.) http://secunia.com/advisories/about_secunia_advisories/
Please Note: Secunia recommends that you verify all advisories you receive by clicking the link. Secunia NEVER sends attached files with advisories. Secunia does not advise people to install third party patches, only use those supplied by the vendor.
Unsubscribe: Secunia Security Advisories http://secunia.com/sec_adv_unsubscribe/?email=packet%40packetstormsecurity.org
Show details on source website
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Sightings
| Author | Source | Type | Date |
|---|
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.