Description
A vulnerability has been identified in SIMATIC PCS 7 V8.2 (All versions), SIMATIC PCS 7 V9.0 (All versions < V9.0 SP3 UC04), SIMATIC PCS 7 V9.1 (All versions < V9.1 SP1), SIMATIC WinCC V15 and earlier (All versions < V15 SP1 Update 7), SIMATIC WinCC V16 (All versions < V16 Update 5), SIMATIC WinCC V17 (All versions < V17 Update 2), SIMATIC WinCC V7.4 (All versions < V7.4 SP1 Update 19), SIMATIC WinCC V7.5 (All versions < V7.5 SP2 Update 5). Legitimate file operations on the web server of the affected systems do not properly neutralize special elements within the pathname. An attacker could then cause the pathname to resolve to a location outside of the restricted directory on the server and read, write or delete unexpected critical files.
CVSS breakdown
CVSS 3.1
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High
E
Physical
RL
O
RC
Changed
Affected products
- Siemens / SIMATIC PCS 7 V8.2All versions – All versions
- Siemens / SIMATIC PCS 7 V9.0All versions < V9.0 SP3 UC04 – All versions < V9.0 SP3 UC04
- Siemens / SIMATIC PCS 7 V9.1All versions < V9.1 SP1 – All versions < V9.1 SP1
- Siemens / SIMATIC WinCC V15 and earlierAll versions < V15 SP1 Update 7 – All versions < V15 SP1 Update 7
- Siemens / SIMATIC WinCC V16All versions < V16 Update 5 – All versions < V16 Update 5
- Siemens / SIMATIC WinCC V17All versions < V17 Update 2 – All versions < V17 Update 2
- Siemens / SIMATIC WinCC V7.4All versions < V7.4 SP1 Update 19 – All versions < V7.4 SP1 Update 19
- Siemens / SIMATIC WinCC V7.5All versions < V7.5 SP2 Update 5 – All versions < V7.5 SP2 Update 5