CVE-2020-15396
CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:C/I:C/A:C
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS
Percentile
5.1%
In HylaFAX+ through 7.0.2 and HylaFAX Enterprise, the faxsetup utility calls chown on files in user-owned directories. By winning a race, a local attacker could use this to escalate his privileges to root.
Affected configurations
| Vendor | Product | Version | CPE |
|---|---|---|---|
| hylafax\+_project | hylafax\+ | * | cpe:2.3:a:hylafax\+_project:hylafax\+:*:*:*:*:*:*:*:* |
| ifax | hylafax_enterprise | - | cpe:2.3:a:ifax:hylafax_enterprise:-:*:*:*:*:*:*:* |
| fedoraproject | fedora | 31 | cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:* |
| fedoraproject | fedora | 32 | cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* |
| opensuse | backports_sle | 15.0 | cpe:2.3:a:opensuse:backports_sle:15.0:sp1:*:*:*:*:*:* |
| opensuse | backports_sle | 15.0 | cpe:2.3:a:opensuse:backports_sle:15.0:sp2:*:*:*:*:*:* |
| opensuse | leap | 15.1 | cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:* |
| opensuse | leap | 15.2 | cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:* |
References
lists.opensuse.org/opensuse-security-announce/2020-08/msg00039.html
lists.opensuse.org/opensuse-security-announce/2020-08/msg00040.html
lists.opensuse.org/opensuse-security-announce/2020-08/msg00046.html
lists.opensuse.org/opensuse-security-announce/2020-09/msg00054.html
bugzilla.suse.com/show_bug.cgi?id=1173521
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/J52QFVREJWJ35YSEEDDRMZQ2LM2H2WE6/
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Y46FOVJUS5SO44A2VEKR7DXEHTI4WK5L/
security.gentoo.org/glsa/202007-06
sourceforge.net/p/hylafax/HylaFAX+/2534/
Related
CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:C/I:C/A:C
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS
Percentile
5.1%