CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
3.5 | $0-$5k | 0.00 |
A vulnerability was found in XenSource Xen 3.4/4.0/4.1/4.2 (Virtualization Software). It has been rated as problematic. Affected by this issue is an unknown part of the component MSI Message Field Handler. The manipulation with an unknown input leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-264. Impacted is availability.
The weakness was published 06/02/2015 by Jan Beulich with SuSE as XSA-128 as confirmed security advisory (Website). The advisory is shared for download at xenbits.xen.org. This vulnerability is handled as CVE-2015-4103 since 05/27/2015. The exploitation is known to be easy. The attack needs to be approached locally. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1068.
The vulnerability scanner Nessus provides a plugin with the ID 84177 (Fedora 22 : xen-4.5.0-10.fc22 (2015-9456)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 370035 (Citrix XenServer Security Update (CTX201145)).
Applying a patch is able to eliminate this problem. A possible mitigation has been published immediately after the disclosure of the vulnerability.
The vulnerability is also documented in the databases at X-Force (103543) and Tenable (84177).
Product
Type
Vendor
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: 4.0VulDB Meta Temp Score: 3.5
VulDB Base Score: 4.0
VulDB Temp Score: 3.5
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv2
AV | AC | Au | C | I | A |
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💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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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
Class: Access controlCWE: CWE-264
CAPEC: 🔍
ATT&CK: 🔍
Local: Yes
Remote: No
Availability: 🔍
Status: Unproven
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
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Today | unlock | unlock | unlock | unlock |
Nessus ID: 84177
Nessus Name: Fedora 22 : xen-4.5.0-10.fc22 (2015-9456)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍
OpenVAS ID: 703284
OpenVAS Name: Debian Security Advisory DSA 3284-1 (qemu - security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍
Qualys ID: 🔍
Qualys Name: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: PatchStatus: 🔍
Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍
Timeline
05/27/2015 🔍06/02/2015 🔍
06/02/2015 🔍
06/02/2015 🔍
06/02/2015 🔍
06/02/2015 🔍
06/03/2015 🔍
06/03/2015 🔍
06/03/2015 🔍
06/15/2015 🔍
05/20/2022 🔍
Sources
Vendor: citrix.comAdvisory: XSA-128
Researcher: Jan Beulich
Organization: SuSE
Status: Confirmed
Confirmation: 🔍
CVE: CVE-2015-4103 (🔍)
OVAL: 🔍
X-Force: 103543 - Xen MSI message data field denial of service
SecurityTracker: 1032456 - Xen MSI Message Data Access Control Flaw Lets Local Guest Users Cause Denial of Service Conditions on Other Guest Systems
Vulnerability Center: 50368 - Xen 3.3 Local DoS due to the Way Logic Deals with Accesses Spanning Multiple Fields, Medium
SecurityFocus: 74947 - Xen CVE-2015-4103 Denial of Service Vulnerability
Entry
Created: 06/03/2015 11:02Updated: 05/20/2022 01:32
Changes: 06/03/2015 11:02 (76), 06/29/2017 12:25 (9), 05/20/2022 01:24 (3), 05/20/2022 01:32 (1)
Complete: 🔍
Cache ID: 3:1F2:103
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