CVE-2021-29769Network attack vector

Session-token disclosure via insecure cookie attributes

Published Jul 26, 2021 · Updated Sep 16, 2024

Information disclosure in IBM i2 Analyze 4.3.0 through 4.3.2 allows remote attackers to obtain session tokens over HTTP. Authorization-token and session-cookie responses omit the Secure attribute, so browsers send those cookies to a crafted HTTP link. A user must follow or encounter the link while an attacker can observe the traffic; the reported consequence is limited to cookie disclosure.

CVSS severity3.1
Low
EPSS probability0.51%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in IBM i2 Analyze 4.3.0 through 4.3.2 allows remote attackers to obtain session tokens over HTTP. Authorization-token and session-cookie responses omit the Secure attribute, so browsers send those cookies to a crafted HTTP link. A user must follow or encounter the link while an attacker can observe the traffic; the reported consequence is limited to cookie disclosure.

The record

CVE
CVE-2021-29769
Published
Jul 26, 2021
Updated
Sep 16, 2024
Vendor
IBM
Product
i2 Analyze
Classifications
CWE-319, T1040
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 26, 2021CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=4.3.0
  2. Affected versionversion=4.3.1
  3. Affected versionversion=4.3.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

IBM · i2 Analyzeversion=4.3.0; version=4.3.1; version=4.3.2

Published CVSS scores

3.1IBMCVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-319Cleartext Transmission of Sensitive Information
T1040Network Sniffing

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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