Cybozu Office up to 10.4.0 File Download Reflected access control
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
3.5 | $0-$5k | 0.00 |
A vulnerability was found in Cybozu Office up to 10.4.0 (Office Suite Software). It has been classified as problematic. Affected is some unknown processing of the component File Download. The manipulation with an unknown input leads to a access control vulnerability (Reflected). CWE is classifying the issue as CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. This is going to have an impact on integrity. CVE summarizes:
Cybozu Office 9.0.0 through 10.4.0 allows remote attackers to conduct a "reflected file download" attack.
The bug was discovered 10/03/2016. The weakness was shared 04/17/2017 (Website). The advisory is shared for download at jvn.jp. This vulnerability is traded as CVE-2016-4874 since 05/17/2016. It is possible to launch the attack remotely. Required for exploitation is a authentication. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1068.
The vulnerability was handled as a non-public zero-day exploit for at least 196 days. During that time the estimated underground price was around $0-$5k.
There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.
The entries 99923, 99922, 99921 and 99920 are related to this item.
Product
Type
Name
Version
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 3.5VulDB Meta Temp Score: 3.5
VulDB Base Score: 3.5
VulDB Temp Score: 3.5
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 3.5
NVD Vector: 🔍
CVSSv2
AV | AC | Au | C | I | A |
---|---|---|---|---|---|
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
---|---|---|---|---|---|
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Name: ReflectedClass: Access control / Reflected
CWE: CWE-284 / CWE-266
ATT&CK: T1068
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
---|---|---|---|---|
Today | unlock | unlock | unlock | unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: no mitigation knownStatus: 🔍
0-Day Time: 🔍
Timeline
05/17/2016 🔍10/03/2016 🔍
04/17/2017 🔍
04/17/2017 🔍
04/17/2017 🔍
04/18/2017 🔍
08/31/2020 🔍
Sources
Advisory: jvn.jpStatus: Not defined
Confirmation: 🔍
CVE: CVE-2016-4874 (🔍)
SecurityFocus: 97719 - Cybozu Office CVE-2016-4874 Arbitrary File Download Vulnerability
OSVDB: - CVE-2016-4874 - Cybozu - Office - Reflected File Download Issue
See also: 🔍
Entry
Created: 04/18/2017 10:34Updated: 08/31/2020 16:39
Changes: 04/18/2017 10:34 (61), 08/31/2020 16:39 (4)
Complete: 🔍
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