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CVE Record

CVE-2018-17499: Envoy Passport for Android and Envoy Passport for iPhone could allow a local attacker to obtain sensitive i...

Envoy Passport for Android and Envoy Passport for iPhone could allow a local attacker to obtain sensitive information, caused by the storing of unencrypted data in logs. An attacker could exploit this vulnerability to obtain two API keys, a token and other sensitive information.

LowCVSS 2.9Not KEV-listedUpdated
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Glexia's TakeAutomated analysislow

Security readout for executives and security teams

Plain-English summary

Envoy Passport mobile apps stored sensitive values in unencrypted logs. Someone with local access to an affected phone could read those logs and obtain API keys, a token, and other sensitive information. The issue is low severity because it requires local access and has limited confidentiality impact.

Executive priority

Treat this as a low-priority cleanup unless affected devices handle sensitive operational data or have weak mobile controls. The practical response is version inventory, update verification, and credential rotation if exposure is plausible.

Technical view

CVE-2018-17499 affects Envoy Passport for iPhone 2.2.5 and Android 2.4.0. The flaw is improper logging of sensitive data in cleartext. CVSS 3.0 is 2.9 with local attack vector, high attack complexity, no privileges required, no user interaction, and low confidentiality impact only.

Likely exposure

Exposure is likely limited to organizations with affected Envoy Passport mobile app versions on managed or unmanaged devices. Risk rises if mobile logs are collected, retained, backed up, or accessible on shared, jailbroken, rooted, or poorly controlled devices.

Exploitation context

The provided sources do not show active exploitation, and this CVE is not marked as KEV. IBM X-Force characterizes exploit maturity as unproven in the supplied CVSS vector. Evidence supports local information disclosure, not remote compromise.

Researcher notes

The source bundle identifies affected versions and cleartext logging of API keys, a token, and other sensitive data. It does not provide fixed version numbers, detailed log locations, exploit evidence, or vendor remediation text, so validation should stay non-invasive and vendor-guided.

Mitigation direction

  • Inventory Envoy Passport mobile app versions across managed devices.
  • Check Envoy guidance for fixed versions and update through official app stores.
  • Remove affected versions from devices that no longer need the app.
  • Rotate exposed API keys or tokens if log access is suspected.
  • Restrict access to mobile diagnostic logs and backups.

Validation and detection

  • Confirm whether iPhone 2.2.5 or Android 2.4.0 is present.
  • Review MDM inventory for Envoy Passport installations and versions.
  • Check whether mobile logs are centrally collected or retained.
  • Assess whether affected devices are rooted, jailbroken, shared, or unmanaged.
  • Review incident records for suspicious local log access.
Prepared
Confidence
medium
Sources
3

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

description · low confidence lookup

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.

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cve · low confidence lookup

CVE-2018-17499 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

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Vulnerability profileCVE Program record
Severity
Low
CVSS
2.9 (3.0)
Known Exploited
No
Published

Vector: CVSS:3.0/AC:H/C:L/I:N/PR:N/A:N/AV:L/S:U/UI:N/RC:C/E:U/RL:O

Official CVE source material

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.

1CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
2.9CVSS 3.0LowCVSS:3.0/AC:H/C:L/I:N/PR:N/A:N/AV:L/S:U/UI:N/RC:C/E:U/RL:O1.41.4Primary CVE score

Vulnerability scoring details

Base CVSS 3.0 score

2.9Low
CVSS 3.0 vector shape for CVE-2018-17499Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.0/AC:H/C:L/I:N/PR:N/A:N/AV:L/S:U/UI:N/RC:C/E:U/RL:O

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
EnvoyEnvoy Passport for iPhone2.2.5Listed
EnvoyEnvoy Passport for Android2.4.0Listed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.