CVE-2013-4123
MediumPublic exploitclient_side_request.cc in Squid 3.2.x before 3.2.13 and 3.3.x before 3.3.8 allows remote attackers to cause a denial of service via a crafted port number in a HTTP Host header.
Published Jul 13, 2013 · Updated Sep 17, 2024
Key Facts
Patch immediately- CVE-2013-4123 is a medium-severity vulnerability (CVSS 5.0 v2) affecting Squid (Squid-Cache), Opensuse.
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 80% probability of exploitation in the next 30 days.
- Fixed versions are available, including Squid 0.
- Brandefense priority: patch immediately, because it is very likely to be exploited soon.
CVSS v2
5.0
AV:N/AC:L/Au:N/C:N/I:N/A:P
EPSS (30-day exploit likelihood)
80%
Higher than 99.6% of all scored CVEs
Exploited in the wild
No known
Not in a known-exploited catalog
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2013-4123 brief as a PDF
Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.
Description
client_side_request.cc in Squid 3.2.x before 3.2.13 and 3.3.x before 3.3.8 allows remote attackers to cause a denial of service via a crafted port number in a HTTP Host header.
Affected Products
47 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| SquidSquid-Cache | 3.2.0.1, 3.2.0.10, 3.2.0.11, 3.2.0.12, 3.2.0.13, 3.2.0.14, 3.2.0.15, 3.2.0.16 | 0 |
| OpensuseOpensuse | 12.3 | n/a |
Timeline
Publicly disclosed
Jul 13, 2013
Last updated
Sep 17, 2024
Weakness Type
- CWE-20 Improper Input Validation
References
- advisory54142
- advisoryhttp://www.squid-cache.org/Advisories/SQUID-2013_3.txt
- patchhttp://www.squid-cache.org/Versions/v3/3.2/changesets/squid-3.2-11826.patch
- exploitExploitDB-26886
- otheropenSUSE-SU-2013:1435
FAQ
Common Questions.
client_side_request.cc in Squid 3.2.x before 3.2.13 and 3.3.x before 3.3.8 allows remote attackers to cause a denial of service via a crafted port number in a HTTP Host header.
Affected: Squid (Squid-Cache) versions 3.2.0.1, 3.2.0.10, 3.2.0.11, 3.2.0.12, 3.2.0.13, 3.2.0.14, 3.2.0.15, 3.2.0.16; Opensuse versions 12.3. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including Squid 0.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.
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