CVE-2018-18957

published 2018-11-05

CVE-2018-18957: An issue has been found in libIEC61850 v1.3. It is a stack-based buffer overflow in prepareGooseBuffer in goose/goose_publisher.c.

Priority P2 67 critical 9.8 CVSS 3.0

AV N AC L PR N UI N S U C H I H A H

EXPLOIT

An issue has been found in libIEC61850 v1.3. It is a stack-based buffer overflow in prepareGooseBuffer in goose/goose_publisher.c.

Affected

1 ranges

Vendor	Product	Version range	Fixed in
mz-automation	libiec61850	—	—

Detection & IOCs extracted from sources · hover to see the quote

path goose/goose_publisher.c↗

command ./goose_publisher_example crash_goosecr_stack_smash_overflow_aaaaaaaaa↗

process goose_publisher_example↗

version libiec61850 1.3↗

• → The overflow is triggered in Ethernet_getInterfaceMACAddress() called from prepareGooseBuffer() when a long interfaceID string is passed; monitor for stack-smashing signals (SIGABRT) originating from goose_publisher_example or any process linked against libiec61850. ↗
• → The vulnerable code path is reached when interfaceID is non-NULL; the attacker-controlled string is passed directly to Ethernet_getInterfaceMACAddress without length validation. ↗

• · The exploit was tested on Linux 4.15.0-38-generic; stack-smashing protection (__stack_chk_fail) causes an abort rather than silent exploitation on hardened builds, but the DoS condition still applies. ↗

CVSS provenance

nvd v3.0 9.8 CRITICAL CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

nvd v2.0 7.5 HIGH AV:N/AC:L/Au:N/C:P/I:P/A:P

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