Schneider Electric Wonderware Inadequate Encryption Strength
Schneider Electric Wonderware Information Server (WIS) Portal 4.0 SP1 through 5.5 uses weak encryption, which allows local users to obtain sensitive information by reading a credential file.
- Published
- Aug 27, 2014
- Updated
- Jun 16, 2026
- EPSS
- 0.1% · 3th percentile
- CWE
- CWE-326
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Report tools
Action score
8
Monitor
Low priority for now.
- CVSS
- 8 / 40 · 2.1 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 0.1%
CNA vs NVD score
- NVD
- 2.1
- CNA · icscert
- 2.1
- agree
The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| invensys | wonderware information server | cpe:2.3:a:invensys:wonderware_information_server |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- invensys wonderware information server4.0
- invensys wonderware information server4.5
- invensys wonderware information server5.0
- invensys wonderware information server5.5
Versions reported by the vendor
Affected version ranges reported by the assigning authority (icscert). Independent of NVD's CPE analysis and usually ahead of it.
Schneider Electric Wonderware Information Server Portal
- 4.0 SP1, 4.5, 5.0, 5.5affected
Same product
invensys: all recordsOther highest-scoring records for the same primary product.
- CVE-2013-0686Invensys Wonderware Information Server (WIS) 4.0 SP1SP1, 4.5- Portal, and 5.0- Portal allows remote attackers to read arbitrary files, send 38Monitor
- CVE-2013-0685Invensys Wonderware Information Server (WIS) 4.0 SP1SP1, 4.5- Portal, and 5.0- Portal does not restrict unspecified size and amount values, 38Monitor
- CVE-2011-2962Multiple stack-based buffer overflows in Invensys Wonderware Information Server 3.1, 4.0, and 4.0 SP1 allow remote attackers to cause a deni38Monitor
- CVE-2014-2380Schneider Electric Wonderware Inadequate Encryption Strength31Monitor
- CVE-2012-0228Invensys Wonderware Information Server 4.0 SP1 and 4.5 does not properly implement client controls, which allows remote attackers to bypass 31Monitor
- CVE-2012-0226SQL injection vulnerability in Invensys Wonderware Information Server 4.0 SP1 and 4.5 allows remote attackers to execute arbitrary SQL comma31Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
No fix version is recorded for this entry. Check the references for vendor advisories.
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- P · data can be read
- Integrity
- none
- Availability
- none
- Attack complexity
- Low
- Confidentiality impact
- P
- Integrity impact
- None
- Availability impact
- None
Weakness class (CWE)
CWE-326 · Inadequate Encryption StrengthCVSS vector
AV:L/AC:L/Au:N/C:P/I:N/A:N
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
Attack patterns (CAPEC)
ATT&CK techniques
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpChange log
No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.
References
- github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2014/icsa-14-238-02.json
- www.cisa.gov/news-events/ics-advisories/icsa-14-238-02
- ics-cert.us-cert.gov/advisories/ICSA-14-238-02
Vendor advisories and official records. Exploit/PoC links are deliberately left out.