JVN#57842148: Lhaplus vulnerable to improper verification when expanding ZIP64 archives

Overview

Lhaplus does not treat ZIP64 archives properly when expanding.

Products Affected

Lhaplus Version 1.73 and earlier

Description

Lhaplus is file compression/decompression software. Lhaplus does not treat ZIP64 archives properly when expanding.

Impact

An unintended content may be extracted from a crafted ZIP64 archive.

Solution

Update the Software
Update to the latest version according to the information provided by the developer.

Vendor Status

Vendor	Status	Last Update	Vendor Notes
Schezo	Vulnerable	2018/01/11	Schezo website

References

JPCERT/CC Addendum

Vulnerability Analysis by JPCERT/CC

CVSS v3 CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

Base Score: 3.3

Attack Vector(AV)	Physical (P)	Local (L)	Adjacent (A)	Network (N)
Attack Complexity(AC)	High (H)	Low (L)
Privileges Required(PR)	High (H)	Low (L)	None (N)
User Interaction(UI)	Required (R)	None (N)
Scope(S)	Unchanged (U)	Changed (C)
Confidentiality Impact(C)	None (N)	Low (L)	High (H)
Integrity Impact(I)	None (N)	Low (L)	High (H)
Availability Impact(A)	None (N)	Low (L)	High (H)

CVSS v2 AV:N/AC:M/Au:N/C:N/I:P/A:N

Base Score: 4.3

Access Vector(AV)	Local (L)	Adjacent Network (A)	Network (N)
Access Complexity(AC)	High (H)	Medium (M)	Low (L)
Authentication(Au)	Multiple (M)	Single (S)	None (N)
Confidentiality Impact(C)	None (N)	Partial (P)	Complete (C)
Integrity Impact(I)	None (N)	Partial (P)	Complete (C)
Availability Impact(A)	None (N)	Partial (P)	Complete (C)

Credit

Koji Ando of LAC Co., Ltd. reported this vulnerability to IPA.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.

Other Information

JPCERT Alert
JPCERT Reports
CERT Advisory
CPNI Advisory
TRnotes
CVE	CVE-2017-2158
JVN iPedia	JVNDB-2018-000001

JVN#57842148 Lhaplus vulnerable to improper verification when expanding ZIP64 archives