CVE-2022-3174Network attack vector

Session cookie disclosure via missing Secure flag

Published Sep 13, 2022 · Updated Aug 3, 2024

Missing cookie protection in Rdiffweb before 2.4.2 allows remote attackers to read session cookies sent over unencrypted HTTP. The secure-headers response hook sets SameSite on session_id but, before the patch, never marks that cookie Secure when CherryPy identifies an HTTPS request. Network visibility of an HTTP request carrying the cookie is required; exposure is limited to the affected user's authenticated session.

CVSS severity7.5
High
EPSS probability0.69%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing cookie protection in Rdiffweb before 2.4.2 allows remote attackers to read session cookies sent over unencrypted HTTP. The secure-headers response hook sets SameSite on session_id but, before the patch, never marks that cookie Secure when CherryPy identifies an HTTPS request. Network visibility of an HTTP request carrying the cookie is required; exposure is limited to the affected user's authenticated session.

The record

CVE
CVE-2022-3174
Published
Sep 13, 2022
Updated
Aug 3, 2024
Vendor
IKUS Software
Product
Rdiffweb
Classifications
CWE-614, CWE-311, T1539
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 13, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 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=unspecified <2.4.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

IKUS Software · Rdiffwebversion=unspecified <2.4.2

Published CVSS scores

7.5huntr.devCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-614Sensitive Cookie in HTTPS Session Without 'Secure' Attribute
CWE-311Missing Encryption of Sensitive Data
T1539Steal Web Session Cookie

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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