Comments (6)
GIC-de
commented on June 1, 2024
The mentioned length check is about the length after decryption, which must be less or equal to the encrypted AVP length.
bngblaster/code/bngblaster/src/bbl_l2tp_avp.c
Line 207 in 2ba5a78
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GIC-de
commented on June 1, 2024
I added some debug (-l debug) logs in dev branch to better understand the issue.
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SoerenBusse
commented on June 1, 2024
Thanks! I just tried the branch and get the following output.
Aug 31 19:07:26.053434 L2TP Debug (LNS1) ZLB received from 172.17.0.2
Aug 31 19:07:26.953665 L2TP Debug (LNS1) ICRQ received from 172.17.0.2
Aug 31 19:07:27.007594 L2TP Debug (LNS1) ZLB received from 172.17.0.2
Aug 31 19:07:27.009297 L2TP Debug (LNS1) ICCN received from 172.17.0.2
Aug 31 19:07:27.009935 L2TP Error (LNS1) Decrypted length 37475 > AVP length 31
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GIC-de
commented on June 1, 2024
Would it be possible to send PCAP and secret to [email protected]? Then I can try to decrypt manually to see what's wrong.
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GIC-de
commented on June 1, 2024
Fixed in dev branch (15c5e0f).
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GIC-de
commented on June 1, 2024
This issue is fixed with 0.7.12 but would recommend to install 0.7.14.
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Related Issues (20)
- CGNAT: Scaled Traffic Streams/Flows say ~4 Million are not getting resolved completely HOT 1
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- TCP-FIN, TCP-FIN-ACK Messages handling in blaster.
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