VAR-200810-0530
Vulnerability from variot - Updated: 2022-05-17 01:49Telecom Italia is Italy's most important ISP, offering ADSL services called Alice. If the intranet user sends the following IP packet to the Alice router: 1) IP protocol number 2552) 8 bytes load size 3) The load is the first 8 bytes of the MD5 data after the br0 device MAC address is deformed 4) These modems The br0 has the same eth0 mac to activate the router's management interface and telnet/ftp/tftp service for unauthorized access. Multiple Telecom Italia routers are prone to an authentication bypass vulnerability that may allow attackers to gain access to a router's administration interface and unauthorized access to certain services. Successfully exploiting this issue will allow attackers to gain unauthorized administrative access to the affected device and activate services such as telnet, ftp, and tftp. The following routers are affected. AGA (Alice Gate2 plus Wi-Fi]) AGB (Alice Gate2 plus) AG2P-AG3 (AG2P-AG3[Alice Gate W2+) AGPV-AGPF (Alice Gate VoIP 2 Plus Wi-Fi). ----------------------------------------------------------------------
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TITLE: Telecom Italia Alice Routers Magic Packet Security Bypass
SECUNIA ADVISORY ID: SA32258
VERIFY ADVISORY: http://secunia.com/advisories/32258/
CRITICAL: Less critical
IMPACT: Security Bypass
WHERE:
From local network
OPERATING SYSTEM: Alice Gate2 Plus Wi-Fi http://secunia.com/advisories/product/17350/ Alice Gate VoIP 2 Plus Wi-Fi http://secunia.com/advisories/product/20162/ Alice Gate 2 Plus http://secunia.com/advisories/product/20160/ Alice Gate W2+ http://secunia.com/advisories/product/20161/
DESCRIPTION: saxdax and drpepperONE have reported a vulnerability in various Telecom Italia Alice routers, which can be exploited by malicious people to bypass certain security restrictions.
SOLUTION: Restrict network access to the vulnerable device.
PROVIDED AND/OR DISCOVERED BY: saxdax and drpepperONE
ORIGINAL ADVISORY: http://lists.grok.org.uk/pipermail/full-disclosure/2008-October/065050.html
About: This Advisory was delivered by Secunia as a free service to help everybody 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.
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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.
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- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
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- 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.