ID
VAR-199909-0003
CVE
CVE-1999-1129
TITLE
IEEE 802.1q unauthorized VLAN Traversing weaknesses
Trust: 0.6
DESCRIPTION
Cisco Catalyst 2900 Virtual LAN (VLAN) switches allow remote attackers to inject 802.1q frames into another VLAN by forging the VLAN identifier in the trunking tag. The 802.1q standard is susceptible to issues that allow attackers to send and receive packets from one VLAN to another without authorization. By spoofing various Ethernet frame fields such as the source or destination MAC addresses, IP addresses, and VLAN tags, attackers may cause packets to traverse from one VLAN to another, and possibly back again. Attackers may also add multiple VLAN tags to packets to cause multiple routers to decapsulate the packets in unexpected ways, aiding the attacker in traversing VLANs. This issue allows attackers to traverse from one VLAN to another in an unauthorized fashion. As some users may utilize VLANs to segregate network segments containing differing security properties, this may have various consequences. This issue may be exacerbated by utilizing attacker-controlled external network hosts to bounce packets between VLANs
Trust: 1.26
AFFECTED PRODUCTS
| vendor: | cisco | model: | ios | scope: | eq | version: | 11.2\(8\)sa5 | Trust: 1.6 |
| vendor: | cisco | model: | catalyst 2900 vlan | scope: | eq | version: | * | Trust: 1.0 |
| vendor: | cisco | model: | catalyst 2900 vlan | scope: | - | version: | - | Trust: 0.6 |
| vendor: | ieee | model: | 802.1q | scope: | - | version: | - | Trust: 0.3 |
| vendor: | cisco | model: | ios sa5 | scope: | eq | version: | 11.2.8 | Trust: 0.3 |
| vendor: | cisco | model: | catalyst ws-c2924m-xl | scope: | - | version: | - | Trust: 0.3 |
CVSS
SEVERITY | CVSSV2 | CVSSV3 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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PROBLEMTYPE DATA
| problemtype: | NVD-CWE-Other | Trust: 1.0 |
THREAT TYPE
remote
Trust: 0.6
TYPE
Design Error
Trust: 0.9
EXTERNAL IDS
| db: | NVD | id: | CVE-1999-1129 | Trust: 2.0 |
| db: | BID | id: | 615 | Trust: 2.0 |
| db: | CNNVD | id: | CNNVD-199909-002 | Trust: 0.7 |
| db: | XF | id: | 3294 | Trust: 0.6 |
| db: | BUGTRAQ | id: | 19990901 VLAN SECURITY | Trust: 0.6 |
| db: | VULHUB | id: | VHN-1110 | Trust: 0.1 |
REFERENCES
| url: | http://www.securityfocus.com/bid/615 | Trust: 2.7 |
| url: | http://www.securityfocus.com/archive/1/26008 | Trust: 2.7 |
| url: | http://www.cisco.com/univercd/cc/td/doc/product/lan/28201900/1928v8x/eescg8x/aleakyv.htm | Trust: 2.7 |
| url: | https://exchange.xforce.ibmcloud.com/vulnerabilities/3294 | Trust: 2.1 |
| url: | http://xforce.iss.net/static/3294.php | Trust: 0.6 |
| url: | http://www.cisco.com/warp/public/707/sec_incident_response.shtml | Trust: 0.3 |
| url: | /archive/1/419831 | Trust: 0.3 |
| url: | /archive/1/419834 | Trust: 0.3 |
CREDITS
This research and the resulting post was sent to the Bugtraq mailing list by Dave Taylor <david.taylor@alphawest.com.au> & Steve Schuppp <Steve.schupp@alphawest.com.au>. Further research was provided by "Andrew A. Vladimirov" <mlists@arhont.com>, Arhont L
Trust: 0.6
SOURCES
| db: | VULHUB | id: | VHN-1110 |
| db: | BID | id: | 615 |
| db: | CNNVD | id: | CNNVD-199909-002 |
| db: | NVD | id: | CVE-1999-1129 |
LAST UPDATE DATE
2024-11-22T23:12:12.687000+00:00
SOURCES UPDATE DATE
| db: | VULHUB | id: | VHN-1110 | date: | 2017-12-19T00:00:00 |
| db: | BID | id: | 615 | date: | 2009-07-11T00:56:00 |
| db: | CNNVD | id: | CNNVD-199909-002 | date: | 2005-10-20T00:00:00 |
| db: | NVD | id: | CVE-1999-1129 | date: | 2024-11-20T23:30:22.793 |
SOURCES RELEASE DATE
| db: | VULHUB | id: | VHN-1110 | date: | 1999-09-01T00:00:00 |
| db: | BID | id: | 615 | date: | 1999-09-02T00:00:00 |
| db: | CNNVD | id: | CNNVD-199909-002 | date: | 1999-09-01T00:00:00 |
| db: | NVD | id: | CVE-1999-1129 | date: | 1999-09-01T04:00:00 |