Re: Cisco IOS Interface Blocked by IPv4 Packets

lyesinn.ang · ‎07-25-2003

Hi,

Is my router affected by the recent Cisco IOS vulnerability?

Below is the show version of my router.

------------------ show version ------------------

Cisco Internetwork Operating System Software

IOS (tm) RSP Software (RSP-DSV-M), Version 11.2(12a), RELEASE SOFTWARE (fc1)

Compiled Sat 14-Mar-98 10:58 by tlane

Image text-base: 0x600108A0, data-base: 0x609EA000

ROM: System Bootstrap, Version 5.3.2(3.2) [kmac 3.2], MAINTENANCE INTERIM SOFTWARE

BOOTFLASH: GS Software (RSP-BOOT-M), Version 11.1(8)CA, EARLY DEPLOYMENT RELEASE SOFTWARE (fc1)

[RouterName] uptime is 11 weeks, 1 day, 18 hours, 43 minutes

System restarted by power-on

System image file is "slot0:rsp-dsv-mz.112-12a", booted via slot0

cisco RSP1 (R4600) processor with 65536K bytes of memory.

R4700 processor, Implementation 33, Revision 1.0

Last reset from power-on

G.703/E1 software, Version 1.0.

Bridging software.

X.25 software, Version 2.0, NET2, BFE and GOSIP compliant.

Chassis Interface.

1 FSIP controller (4 Serial).

1 AIP controller (1 ATM).

1 TRIP controller (2 Token Ring).

2 Token Ring/IEEE 802.5 interface(s)

4 Serial network interface(s)

1 ATM network interface(s)

125K bytes of non-volatile configuration memory.

semilius · ‎07-25-2003

Hi Lye,

yes, your posted IOS is affected.

For fixing this problem, you need 11.2(26e).

But unfortunately this is a very old code, so you cannot download a new image from cco, you have to contact the TAC.

Regards

Stefan

lyesinn.ang · ‎07-25-2003

hi stefan,

so will downgrade of ISO affect my network or router.

Thanks

ashok_boin · ‎07-30-2003

Hi,

According to your "sh ver", your router might be 7500 series, then why cann't you upgrade to latest version 12.3.

Ashok.

With best regards...
Ashok