Ubuntu.comUB:CVE-2017-7761CVE-2017-7761
5.5 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
3.6 Low
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:L/AC:L/Au:N/C:N/I:P/A:P
0.001 Low
EPSS
Percentile
24.1%
The Mozilla Maintenance Service “helper.exe” application creates a
temporary directory writable by non-privileged users. When this is combined
with creation of a junction (a form of symbolic link), protected files in
the target directory of the junction can be deleted by the Mozilla
Maintenance Service, which has privileged access. Note: This attack
requires local system access and only affects Windows. Other operating
systems are not affected. This vulnerability affects Firefox ESR < 52.2 and
Firefox < 54.
Notes
| Author | Note |
|---|---|
| chrisccoulson | Windows only |
Related
5.5 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
3.6 Low
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:L/AC:L/Au:N/C:N/I:P/A:P
0.001 Low
EPSS
Percentile
24.1%