Security readout for executives and security teams
Plain-English summary
CVE-2017-3774 affects the IMM2 web administration service used in some Lenovo and IBM servers. A crafted login attempt can trigger a stack overflow in authentication handling, causing stack corruption. The sources do not provide CVSS, confirmed exploitation, or detailed impact beyond stack corruption.
Executive priority
Prioritize asset discovery and management-plane isolation first. Treat externally reachable IMM2 interfaces as urgent until firmware status is confirmed.
Technical view
The vulnerability is a stack overflow in the IMM2 web administration authentication routine. A crafted user ID and password combination can overflow the stack. Sources cite Lenovo IMM2 before 4.70 and IBM IMM2 before 6.60, though the bundle also lists Lenovo before 4.40, so version scoping should be verified against Lenovo guidance.
Likely exposure
Exposure is most likely on servers with IMM2 web administration reachable from management networks, VPNs, or the internet. Risk increases if IMM2 interfaces are broadly accessible.
Exploitation context
No KEV listing is provided and the source bundle cites no active exploitation. The described trigger is a crafted authentication attempt against the IMM2 web administration service.
Researcher notes
Evidence is limited to the CVE description and Lenovo advisory reference. No CVSS, CWE, exploit confirmation, or detailed post-corruption impact is included in the supplied sources.
Mitigation direction
- Review Lenovo advisory LEN-19586 for applicable fixed firmware versions.
- Update IBM IMM2 to 6.60 or later where applicable.
- Verify Lenovo IMM2 target version because source details conflict.
- Restrict IMM2 web administration to trusted management networks.
- Remove internet exposure for IMM2 management interfaces.
Validation and detection
- Inventory Lenovo and IBM servers using IMM2.
- Record current IMM2 firmware versions for each server.
- Check whether IMM2 web administration is reachable beyond management networks.
- Compare findings against Lenovo LEN-19586 guidance.
- Confirm upgraded systems report non-affected IMM2 firmware versions.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
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Credential and access behavior lookup
The CVE wording references authentication or credential exposure, so valid-account and credential-access review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2017-3774 mapping review
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://support.lenovo.com/us/en/product_security/LEN-19586CVE reference · x_refsource_CONFIRM
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.