Information disclosure in F5 Arx
CVE-2013-3587
The HTTPS protocol, as used in unspecified web applications, can encrypt compressed data without properly obfuscating the length of the unencrypted data, which makes it easier for man-in-the-middle attackers to obtain plaintext secret values by observing length differences during a series of guesses in which a string in an HTTP request URL potentially matches an unknown string in an HTTP response body, aka a "BREACH" attack, a different issue than CVE-2012-4929.
Vulnerability class: Information Disclosure
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.060 (93.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 93rd percentile — 93.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.060 · newest: 0.060 · change: 0.000
Affected products
- F5 Arx
- F5 Big-Ip Access Policy Manager — versions 13.0.0
- F5 Big-Ip Advanced Firewall Manager — versions 13.0.0
- F5 Big-Ip Analytics — versions 13.0.0
- F5 Big-Ip Application Acceleration Manager — versions 13.0.0
- F5 Big-Ip Application Security Manager — versions 13.0.0
- F5 Big-Ip Edge Gateway
- F5 Big-Ip Link Controller — versions 13.0.0
- F5 Big-Ip Local Traffic Manager — versions 13.0.0
- F5 Big-Ip Policy Enforcement Manager — versions 13.0.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- breachattack.com/ (Third Party Advisory)
- security.stackexchange.com/questions/20406/is-http-compression-safe (Exploit, Third Party Advisory)
- slashdot.org/story/13/08/05/233216 (Third Party Advisory)
- www.iacr.org/cryptodb/archive/2002/FSE/3091/3091.pdf (Third Party Advisory)
- www.blackhat.com/us-13/briefings.html (Third Party Advisory)
- github.com/meldium/breach-mitigation-rails (Third Party Advisory)
- www.djangoproject.com/weblog/2013/aug/06/breach-and-django/ (Third Party Advisory)
- www.kb.cert.org/vuls/id/987798 (US Government Resource, Third Party Advisory)
- hackerone.com/reports/254895 (Exploit, Third Party Advisory)
- bugzilla.redhat.com/show_bug.cgi (Third Party Advisory, Issue Tracking)
Frequently asked questions
- What is CVE-2013-3587?
- CVE-2013-3587 is a medium-severity vulnerability in F5 Arx, classified under Information Disclosure. CVSS score: 5.9/10. Published 2020-02-21.
- How severe is CVE-2013-3587?
- Medium severity. CVSS v3 base score is 5.9 out of 10.
- Is CVE-2013-3587 known to be exploited?
- 28 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.