CVE-2017-16613

An issue was discovered in middleware.py in OpenStack Swauth through 1.2.0 when used with OpenStack Swift through 2.15.1. The Swift object store and proxy server are saving (unhashed) tokens retrieved from the Swauth middleware authentication mechanism to a log file as part of a GET URI. This allows attackers to bypass authentication by inserting a token into an X-Auth-Token header of a new request. NOTE: github.com/openstack/swauth URLs do not mean that Swauth is maintained by an official OpenStack project team.

Published: 2017-11-21 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2017-16613 is rated High Risk (77.2/100): CVSS Critical severity, with high exploitation likelihood (EPSS 8.35%, 94th percentile). Core evidence: EPSS ranks this CVE among the most likely to be exploited in the near term. EPSS rose +6.01% over the last day, indicating growing attacker interest. Mandatory action: High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2017-16613

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 2.34% 8.35% +6.01%
2 2025-09-19 3.15% 2.34% -0.81%
3 2025-06-07 3.15%

Full EPSS history (12 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2017-16613

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.8 3.0 CRITICAL
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
3.9 5.9 [email protected]
7.5 2.0 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
10.0 6.4 [email protected]

Weakness enumeration for CVE-2017-16613

GitHub Security Advisory for CVE-2017-16613

GHSA-qhq8-xwqv-pvv9 · Severity: critical · Ecosystem: pip — OpenStack Swauth object/proxy server writing Auth Token to log file

OS Trackers for CVE-2017-16613

vendor priority summary link
ubuntu medium CVE-2017-16613 medium priority: Ubuntu including 1 source packages (swauth), 19 status rows across 19 suites (artful, bionic, cosmic, disco, eoan, focal, groovy, hirsute, impish, jammy, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial, zesty): DNE 12, not-affected 3, released 2, ignored 1, needed 1. https://ubuntu.com/security/CVE-2017-16613

Affected software / configurations for CVE-2017-16613

Vendor Product Version Raw CPE
openstack swauth <= 1.2.0 cpe:2.3:a:openstack:swauth:*:*:*:*:*:*:*:*
openstack swift <= 2.15.1 cpe:2.3:a:openstack:swift:*:*:*:*:*:*:*:*
debian debian_linux 9.0 cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

References for CVE-2017-16613

URL Tags
http://www.securityfocus.com/bid/101926 Third Party Advisory VDB Entry
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=882314 Issue Tracking Patch Third Party Advisory
https://bugs.launchpad.net/swift/+bug/1655781 Issue Tracking Patch Third Party Advisory
https://github.com/openstack/swauth/commit/70af7986265a3defea054c46efc82d0698917298 Issue Tracking Patch Third Party Advisory
https://www.debian.org/security/2017/dsa-4044 Issue Tracking Third Party Advisory
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