CVE-2003-1286: HTTP Proxy in Sambar Server before 6.0 beta 6, when security.ini lacks a 127.0.0.1 proxydeny entry, allows rem

This month

HIGH 7.5DOWNGRADE

CVE-2003-1286 is a high-severity flaw (CVSS 7.5) affecting sambar server. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

HTTP Proxy in Sambar Server before 6.0 beta 6, when security.ini lacks a 127.0.0.1 proxydeny entry, allows remote attackers to send proxy HTTP requests to the Sambar Server's administrative interface and external web servers, by making a "Connection: keep-alive" request before the proxy requests.

Why this priority

High severity
Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	7.5 (High)
EPSS exploit chance	3.4% (top 11%)
CISA exploited list	No
Published	2003-12-31
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: sambar

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2003-12-31 05:00 UTCPublished CVE record published
2026-06-16 22:03 UTCUpdated Record last modified

sambar sambar server DOWNGRADE

Affected: 5.0 · 5.0 beta1 · 5.0 beta2 · 5.0 beta3 · 5.0 beta4 · 5.0 beta5 · 5.0 beta6 · 5.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 5.0

1. Check installed version

apt-cache policy sambar-server || rpm -q sambar-server || sambar-server --version

2. No fixed release: DOWNGRADE to a release before 5.0 (Debian / Ubuntu)

apt-cache madison sambar-server sudo apt install sambar-server=<VERSION_BEFORE_5.0> sudo apt-mark hold sambar-server

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list sambar-server sudo dnf downgrade sambar-server-<VERSION_BEFORE_5.0> sudo dnf versionlock add sambar-server

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Exploit-DB: Sambar Server 5.x - Open Proxy / Authentication Bypass

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2003-1286?

sambar server: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2003-1286 being exploited?

CVE-2003-1286 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2003-1286 affect?

CVE-2003-1286 affects sambar server. Severity is high (CVSS 7.5). HTTP Proxy in Sambar Server before 6.0 beta 6, when security.ini lacks a 127.0.0.1 proxydeny entry, allows remote attackers to send proxy HTTP requests to the Sambar Server's administrative interface and external web servers, by making a "C

How urgent is CVE-2003-1286?

Priority 53/100. High severity; Public exploit reference

Related CVEs

CVE-2006-6624 MEDIUM 4.0 DOWNGRADE The FTP Server in Sambar Server 6.4 allows remote authenticated users to cause a denial of service (applicatio
CVE-2005-3506 MEDIUM 4.3 UPGRADE Cross-site scripting (XSS) vulnerability in proxy.asp in Sambar Server 6.3 BETA 2 and possibly earlier version
CVE-2004-2565 MEDIUM 5.0 DOWNGRADE Multiple directory traversal vulnerabilities in Sambar Server 6.1 Beta 2 on Windows, and possibly other versio
CVE-2004-2564 MEDIUM 4.3 DOWNGRADE Multiple cross-site scripting (XSS) vulnerabilities in Sambar Server 6.1 Beta 2 on Windows, and possibly other
CVE-2004-2086 MEDIUM 5.0 DOWNGRADE Stack-based buffer overflow in results.stm for Sambar Server before the 6.0 production release allows remote a

References

← Back to latest CVEs