Common Weakness Enumeration
CWE-208
AllowedObservable Timing Discrepancy
Abstraction: Base · Status: Incomplete
Two separate operations in a product require different amounts of time to complete, in a way that is observable to an actor and reveals security-relevant information about the state of the product, such as whether a particular operation was successful or not.
357 vulnerabilities reference this CWE, most recent first.
CVE-2020-15237 (GCVE-0-2020-15237)
Vulnerability from cvelistv5 – Published: 2020-10-05 18:30 – Updated: 2024-08-04 13:08
VLAI
EPSS
VEX
Title
Timing attack in Shrine
Summary
In Shrine before version 3.3.0, when using the `derivation_endpoint` plugin, it's possible for the attacker to use a timing attack to guess the signature of the derivation URL. The problem has been fixed by comparing sent and calculated signature in constant time, using `Rack::Utils.secure_compare`. Users using the `derivation_endpoint` plugin are urged to upgrade to Shrine 3.3.0 or greater. A possible workaround is provided in the linked advisory.
Severity
5.9 (Medium)
CWE
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/shrinerb/shrine/security/advis… | x_refsource_CONFIRM |
| https://github.com/shrinerb/shrine/commit/1b27090… | x_refsource_MISC |
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CVE-2020-11037 (GCVE-0-2020-11037)
Vulnerability from cvelistv5 – Published: 2020-04-30 22:20 – Updated: 2024-11-19 15:42
VLAI
EPSS
VEX
Title
Potential Observable Timing Discrepancy in Wagtail
Summary
In Wagtail before versions 2.7.3 and 2.8.2, a potential timing attack exists on pages or documents that have been protected with a shared password through Wagtail's "Privacy" controls. This password check is performed through a character-by-character string comparison, and so an attacker who is able to measure the time taken by this check to a high degree of accuracy could potentially use timing differences to gain knowledge of the password. This is [understood to be feasible on a local network, but not on the public internet](https://groups.google.com/d/msg/django-developers/iAaq0pvHXuA/fpUuwjK3i2wJ).
Privacy settings that restrict access to pages/documents on a per-user or per-group basis (as opposed to a shared password) are unaffected by this vulnerability.
This has been patched in 2.7.3, 2.8.2, 2.9.
Severity
6.1 (Medium)
CWE
- CWE-208 - Observable Timing Discrepancy
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/wagtail/wagtail/security/advis… | x_refsource_CONFIRM |
| https://github.com/wagtail/wagtail/commit/3c03049… | x_refsource_MISC |
| https://github.com/wagtail/wagtail/commit/b76ab57… | x_refsource_MISC |
| https://github.com/wagtail/wagtail/commit/ba9d424… | x_refsource_MISC |
| https://github.com/wagtail/wagtail/commit/bac3cd0… | x_refsource_MISC |
Impacted products
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CVE-2020-4071 (GCVE-0-2020-4071)
Vulnerability from cvelistv5 – Published: 2020-06-24 12:15 – Updated: 2024-08-04 07:52
VLAI
EPSS
VEX
Title
Timing attack on django-basic-auth-ip-whitelist
Summary
In django-basic-auth-ip-whitelist before 0.3.4, a potential timing attack exists on websites where the basic authentication is used or configured, i.e. BASIC_AUTH_LOGIN and BASIC_AUTH_PASSWORD is set. Currently the string comparison between configured credentials and the ones provided by users is performed through a character-by-character string comparison. This enables a possibility that attacker may time the time it takes the server to validate different usernames and password, and use this knowledge to work out the valid credentials. This attack is understood not to be realistic over the Internet. However, it may be achieved from within local networks where the website is hosted, e.g. from inside a data centre where a website's server is located. Sites protected by IP address whitelisting only are unaffected by this vulnerability. This vulnerability has been fixed on version 0.3.4 of django-basic-auth-ip-whitelist. Update to version 0.3.4 as soon as possible and change basic authentication username and password configured on a Django project using this package. A workaround without upgrading to version 0.3.4 is to stop using basic authentication and use the IP whitelisting component only. It can be achieved by not setting BASIC_AUTH_LOGIN and BASIC_AUTH_PASSWORD in Django project settings.
Severity
CWE
- CWE-208 - Observable Timing Discrepancy
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/tm-kn/django-basic-auth-ip-whi… | x_refsource_CONFIRM |
| https://groups.google.com/forum/#%21msg/django-de… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| tm-kn | django-basic-auth-ip-whitelist |
Affected:
< 0.3.4
|
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CVE-2020-1926 (GCVE-0-2020-1926)
Vulnerability from cvelistv5 – Published: 2021-03-16 13:00 – Updated: 2025-02-13 16:27
VLAI
EPSS
VEX
Title
Timing attack in Cookie signature verification
Summary
Apache Hive cookie signature verification used a non constant time comparison which is known to be vulnerable to timing attacks. This could allow recovery of another users cookie signature. The issue was addressed in Apache Hive 2.3.8
Severity
No CVSS data available.
CWE
- CWE-208 - Information Exposure Through Timing Discrepancy
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://issues.apache.org/jira/browse/HIVE-22708 | x_refsource_MISC |
| https://lists.apache.org/thread.html/rd186eedff68… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache Hive |
Affected:
Apache Hive , < 2.3.8
(custom)
|
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CVE-2019-16782 (GCVE-0-2019-16782)
Vulnerability from cvelistv5 – Published: 2019-12-18 19:05 – Updated: 2024-08-05 01:24
VLAI
EPSS
VEX
Title
Possible Information Leak / Session Hijack Vulnerability in Rack
Summary
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Severity
6.3 (Medium)
CWE
- CWE-208 - Information Exposure Through Timing Discrepancy
Assigner
References
9 references
| URL | Tags |
|---|---|
| https://github.com/rack/rack/security/advisories/… | x_refsource_CONFIRM |
| https://github.com/rack/rack/commit/7fecaee81f599… | x_refsource_CONFIRM |
| http://www.openwall.com/lists/oss-security/2019/12/18/3 | mailing-listx_refsource_MLIST |
| http://www.openwall.com/lists/oss-security/2019/12/18/2 | mailing-listx_refsource_MLIST |
| http://www.openwall.com/lists/oss-security/2019/12/19/3 | mailing-listx_refsource_MLIST |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| http://lists.opensuse.org/opensuse-security-annou… | vendor-advisoryx_refsource_SUSE |
| http://www.openwall.com/lists/oss-security/2020/04/08/1 | mailing-listx_refsource_MLIST |
| http://www.openwall.com/lists/oss-security/2020/04/09/2 | mailing-listx_refsource_MLIST |
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CVE-2019-13420 (GCVE-0-2019-13420)
Vulnerability from cvelistv5 – Published: 2019-08-13 14:25 – Updated: 2024-08-04 23:49
VLAI
EPSS
VEX
Summary
Search Guard versions before 21.0 had an timing side channel issue when using the internal user database.
Severity
No CVSS data available.
CWE
- CWE-208 - Information Exposure Through Timing Discrepancy
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://search-guard.com/cve-advisory/ | x_refsource_MISC |
| https://docs.search-guard.com/6.x-21/changelog-se… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| floragunn | Search Guard |
Affected:
unspecified , < 21.0
(custom)
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CVE-2019-9494 (GCVE-0-2019-9494)
Vulnerability from cvelistv5 – Published: 2019-04-17 13:31 – Updated: 2024-08-04 21:54
VLAI
EPSS
VEX
Title
The implementations of SAE in hostapd and wpa_supplicant are vulnerable to side-channel attacks
Summary
The implementations of SAE in hostapd and wpa_supplicant are vulnerable to side channel attacks as a result of observable timing differences and cache access patterns. An attacker may be able to gain leaked information from a side channel attack that can be used for full password recovery. Both hostapd with SAE support and wpa_supplicant with SAE support prior to and including version 2.7 are affected.
Severity
No CVSS data available.
CWE
Assigner
References
9 references
| URL | Tags |
|---|---|
| https://w1.fi/security/2019-1/ | x_refsource_CONFIRM |
| https://www.synology.com/security/advisory/Synolo… | x_refsource_CONFIRM |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| https://security.FreeBSD.org/advisories/FreeBSD-S… | vendor-advisoryx_refsource_FREEBSD |
| https://seclists.org/bugtraq/2019/May/40 | mailing-listx_refsource_BUGTRAQ |
| http://packetstormsecurity.com/files/152914/FreeB… | x_refsource_MISC |
| http://lists.opensuse.org/opensuse-security-annou… | vendor-advisoryx_refsource_SUSE |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Wi-Fi Alliance | hostapd with SAE support |
Affected:
2.7 , ≤ 2.7
(custom)
|
|
| Wi-Fi Alliance | wpa_supplicant with SAE support |
Affected:
2.7 , ≤ 2.7
(custom)
|
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CVE-2017-20240 (GCVE-0-2017-20240)
Vulnerability from cvelistv5 – Published: 2026-06-12 13:19 – Updated: 2026-06-12 16:59
VLAI
EPSS
VEX
Title
Crypt::PBKDF2 versions before 0.261630 for Perl are vulnerable to timing attacks
Summary
Crypt::PBKDF2 versions before 0.261630 for Perl are vulnerable to timing attacks.
These versions use Perl's built-in eq comparison. Discrepancies in timing could be used to guess the underlying derived-key.
Severity
5.9 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-12 16:06 UTC
CWE
- CWE-208 - Observable Timing Discrepancy
Assigner
References
4 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| ARODLAND | Crypt::PBKDF2 |
Affected:
0 , < 0.261630
(custom)
|
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CVE-2016-15015 (GCVE-0-2016-15015)
Vulnerability from cvelistv5 – Published: 2023-01-08 17:15 – Updated: 2024-08-06 03:47
VLAI
EPSS
VEX
Title
viafintech Barzahlen Payment Module PHP SDK Webhook.php verify timing discrepancy
Summary
A vulnerability, which was classified as problematic, was found in viafintech Barzahlen Payment Module PHP SDK up to 2.0.0. Affected is the function verify of the file src/Webhook.php. The manipulation leads to observable timing discrepancy. The complexity of an attack is rather high. The exploitability is told to be difficult. Upgrading to version 2.0.1 is able to address this issue. The patch is identified as 3e7d29dc0ca6c054a6d6e211f32dae89078594c1. It is recommended to upgrade the affected component. VDB-217650 is the identifier assigned to this vulnerability.
Severity
CWE
- CWE-208 - Observable Timing Discrepancy
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.217650 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.217650 | signaturepermissions-required |
| https://github.com/viafintech/Barzahlen-PHP/pull/8 | issue-tracking |
| https://github.com/viafintech/Barzahlen-PHP/commi… | patch |
| https://github.com/viafintech/Barzahlen-PHP/relea… | patch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| viafintech | Barzahlen Payment Module PHP SDK |
Affected:
2.0
|
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"value": "A vulnerability, which was classified as problematic, was found in viafintech Barzahlen Payment Module PHP SDK up to 2.0.0. Affected is the function verify of the file src/Webhook.php. The manipulation leads to observable timing discrepancy. The complexity of an attack is rather high. The exploitability is told to be difficult. Upgrading to version 2.0.1 is able to address this issue. The patch is identified as 3e7d29dc0ca6c054a6d6e211f32dae89078594c1. It is recommended to upgrade the affected component. VDB-217650 is the identifier assigned to this vulnerability."
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"value": "Es wurde eine Schwachstelle in viafintech Barzahlen Payment Module PHP SDK bis 2.0.0 gefunden. Sie wurde als problematisch eingestuft. Es betrifft die Funktion verify der Datei src/Webhook.php. Durch Manipulation mit unbekannten Daten kann eine observable timing discrepancy-Schwachstelle ausgenutzt werden. Die Komplexit\u00e4t eines Angriffs ist eher hoch. Sie gilt als schwierig auszunutzen. Ein Aktualisieren auf die Version 2.0.1 vermag dieses Problem zu l\u00f6sen. Der Patch wird als 3e7d29dc0ca6c054a6d6e211f32dae89078594c1 bezeichnet. Als bestm\u00f6gliche Massnahme wird das Einspielen eines Upgrades empfohlen."
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CVE-2016-10535 (GCVE-0-2016-10535)
Vulnerability from cvelistv5 – Published: 2018-05-31 20:00 – Updated: 2024-09-17 01:30
VLAI
EPSS
VEX
Summary
csrf-lite is a cross-site request forgery protection library for framework-less node sites. csrf-lite uses `===`, a fail first string comparison, instead of a time constant string comparison This enables an attacker to guess the secret in no more than (16*18)288 guesses, instead of the 16^18 guesses required were the timing attack not present.
Severity
No CVSS data available.
CWE
- CWE-208 - Information Exposure Through Timing Discrepancy (CWE-208)
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://nodesecurity.io/advisories/94 | x_refsource_MISC |
| https://github.com/isaacs/csrf-lite/pull/1 | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| HackerOne | csrf-lite node module |
Affected:
<=0.1.1
|
Date Public
2018-04-26 00:00
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No mitigation information available for this CWE.
CAPEC-462: Cross-Domain Search Timing
An attacker initiates cross domain HTTP / GET requests and times the server responses. The timing of these responses may leak important information on what is happening on the server. Browser's same origin policy prevents the attacker from directly reading the server responses (in the absence of any other weaknesses), but does not prevent the attacker from timing the responses to requests that the attacker issued cross domain.
CAPEC-541: Application Fingerprinting
An adversary engages in fingerprinting activities to determine the type or version of an application installed on a remote target.
CAPEC-580: System Footprinting
An adversary engages in active probing and exploration activities to determine security information about a remote target system. Often times adversaries will rely on remote applications that can be probed for system configurations.